8cf079bd74
Automatic merge from submit-queue (batch tested with PRs 38260, 32811, 28458, 33570, 37096) Fix support for DNS in local-up-cluster.sh []() The default appears to be gce now, so this tries to spawn a service in gce... not the desired outcome for a local test setup. We also need to sync the kubectl config in the script with the instructions for users, since if people don't test with DNS enabled, it bitrots (which this aims to fix). To test manually, run something like ``` sudo KUBE_ENABLE_CLUSTER_DNS=true API_HOST_IP=0.0.0.0 ./hack/local-up-cluster.sh ``` The API_HOST_IP=0.0.0.0 is required, otherwise the master is not contactable by kubedns, and the dns pod will fail readychecking on the healthz pod.
829 lines
30 KiB
Bash
Executable File
829 lines
30 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This command builds and runs a local kubernetes cluster. It's just like
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# local-up.sh, but this one launches the three separate binaries.
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# You may need to run this as root to allow kubelet to open docker's socket,
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# and to write the test CA in /var/run/kubernetes.
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DOCKER_OPTS=${DOCKER_OPTS:-""}
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DOCKER=(docker ${DOCKER_OPTS})
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DOCKERIZE_KUBELET=${DOCKERIZE_KUBELET:-""}
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ALLOW_PRIVILEGED=${ALLOW_PRIVILEGED:-""}
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ALLOW_SECURITY_CONTEXT=${ALLOW_SECURITY_CONTEXT:-""}
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PSP_ADMISSION=${PSP_ADMISSION:-""}
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RUNTIME_CONFIG=${RUNTIME_CONFIG:-""}
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KUBELET_AUTHORIZATION_WEBHOOK=${KUBELET_AUTHORIZATION_WEBHOOK:-""}
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KUBELET_AUTHENTICATION_WEBHOOK=${KUBELET_AUTHENTICATION_WEBHOOK:-""}
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# Name of the network plugin, eg: "kubenet"
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NET_PLUGIN=${NET_PLUGIN:-""}
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# Place the binaries required by NET_PLUGIN in this directory, eg: "/home/kubernetes/bin".
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NET_PLUGIN_DIR=${NET_PLUGIN_DIR:-""}
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KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
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SERVICE_CLUSTER_IP_RANGE=${SERVICE_CLUSTER_IP_RANGE:-10.0.0.0/24}
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# if enabled, must set CGROUP_ROOT
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EXPERIMENTAL_CGROUPS_PER_QOS=${EXPERIMENTAL_CGROUPS_PER_QOS:-false}
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# this is not defaulted to preserve backward compatibility.
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# if EXPERIMENTAL_CGROUPS_PER_QOS is enabled, recommend setting to /
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CGROUP_ROOT=${CGROUP_ROOT:-""}
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# name of the cgroup driver, i.e. cgroupfs or systemd
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CGROUP_DRIVER=${CGROUP_DRIVER:-""}
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# We disable cluster DNS by default because this script uses docker0 (or whatever
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# container bridge docker is currently using) and we don't know the IP of the
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# DNS pod to pass in as --cluster-dns. To set this up by hand, set this flag
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# and change DNS_SERVER_IP to the appropriate IP.
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ENABLE_CLUSTER_DNS=${KUBE_ENABLE_CLUSTER_DNS:-false}
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DNS_SERVER_IP=${KUBE_DNS_SERVER_IP:-10.0.0.10}
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DNS_DOMAIN=${KUBE_DNS_NAME:-"cluster.local"}
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DNS_REPLICAS=${KUBE_DNS_REPLICAS:-1}
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KUBECTL=${KUBECTL:-cluster/kubectl.sh}
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WAIT_FOR_URL_API_SERVER=${WAIT_FOR_URL_API_SERVER:-10}
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ENABLE_DAEMON=${ENABLE_DAEMON:-false}
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HOSTNAME_OVERRIDE=${HOSTNAME_OVERRIDE:-"127.0.0.1"}
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CLOUD_PROVIDER=${CLOUD_PROVIDER:-""}
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CLOUD_CONFIG=${CLOUD_CONFIG:-""}
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FEATURE_GATES=${FEATURE_GATES:-"AllAlpha=true"}
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# RBAC Mode options
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ALLOW_ANY_TOKEN=${ALLOW_ANY_TOKEN:-false}
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ENABLE_RBAC=${ENABLE_RBAC:-false}
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KUBECONFIG_TOKEN=${KUBECONFIG_TOKEN:-""}
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AUTH_ARGS=${AUTH_ARGS:-""}
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# start the cache mutation detector by default so that cache mutators will be found
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KUBE_CACHE_MUTATION_DETECTOR="${KUBE_CACHE_MUTATION_DETECTOR:-true}"
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export KUBE_CACHE_MUTATION_DETECTOR
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# START_MODE can be 'all', 'kubeletonly', or 'nokubelet'
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START_MODE=${START_MODE:-"all"}
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# sanity check for OpenStack provider
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if [ "${CLOUD_PROVIDER}" == "openstack" ]; then
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if [ "${CLOUD_CONFIG}" == "" ]; then
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echo "Missing CLOUD_CONFIG env for OpenStack provider!"
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exit 1
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fi
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if [ ! -f "${CLOUD_CONFIG}" ]; then
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echo "Cloud config ${CLOUD_CONFIG} doesn't exit"
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exit 1
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fi
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fi
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if [ "$(id -u)" != "0" ]; then
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echo "WARNING : This script MAY be run as root for docker socket / iptables functionality; if failures occur, retry as root." 2>&1
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fi
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# Stop right away if the build fails
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set -e
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source "${KUBE_ROOT}/hack/lib/init.sh"
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function usage {
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echo "This script starts a local kube cluster. "
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echo "Example 1: hack/local-up-cluster.sh -o _output/dockerized/bin/linux/amd64/ (run from docker output)"
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echo "Example 2: hack/local-up-cluster.sh -O (auto-guess the bin path for your platform)"
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echo "Example 3: hack/local-up-cluster.sh (build a local copy of the source)"
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}
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# This function guesses where the existing cached binary build is for the `-O`
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# flag
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function guess_built_binary_path {
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local hyperkube_path=$(kube::util::find-binary "hyperkube")
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if [[ -z "${hyperkube_path}" ]]; then
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return
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fi
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echo -n "$(dirname "${hyperkube_path}")"
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}
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### Allow user to supply the source directory.
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GO_OUT=""
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while getopts "o:O" OPTION
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do
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case $OPTION in
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o)
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echo "skipping build"
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GO_OUT="$OPTARG"
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echo "using source $GO_OUT"
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;;
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O)
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GO_OUT=$(guess_built_binary_path)
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if [ $GO_OUT == "" ]; then
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echo "Could not guess the correct output directory to use."
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exit 1
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fi
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;;
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?)
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usage
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exit
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;;
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esac
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done
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if [ "x$GO_OUT" == "x" ]; then
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make -C "${KUBE_ROOT}" WHAT="cmd/kubectl cmd/hyperkube cmd/kubernetes-discovery"
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else
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echo "skipped the build."
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fi
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function test_docker {
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${DOCKER[@]} ps 2> /dev/null 1> /dev/null
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if [ "$?" != "0" ]; then
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echo "Failed to successfully run 'docker ps', please verify that docker is installed and \$DOCKER_HOST is set correctly."
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exit 1
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fi
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}
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function test_rkt {
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if [[ -n "${RKT_PATH}" ]]; then
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${RKT_PATH} list 2> /dev/null 1> /dev/null
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if [ "$?" != "0" ]; then
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echo "Failed to successfully run 'rkt list', please verify that ${RKT_PATH} is the path of rkt binary."
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exit 1
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fi
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else
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rkt list 2> /dev/null 1> /dev/null
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if [ "$?" != "0" ]; then
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echo "Failed to successfully run 'rkt list', please verify that rkt is in \$PATH."
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exit 1
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fi
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fi
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}
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function test_openssl_installed {
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openssl version >& /dev/null
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if [ "$?" != "0" ]; then
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echo "Failed to run openssl. Please ensure openssl is installed"
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exit 1
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fi
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}
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# Shut down anyway if there's an error.
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set +e
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API_PORT=${API_PORT:-8080}
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API_SECURE_PORT=${API_SECURE_PORT:-6443}
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API_HOST=${API_HOST:-localhost}
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API_HOST_IP=${API_HOST_IP:-"127.0.0.1"}
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API_BIND_ADDR=${API_BIND_ADDR:-"0.0.0.0"}
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KUBELET_HOST=${KUBELET_HOST:-"127.0.0.1"}
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# By default only allow CORS for requests on localhost
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API_CORS_ALLOWED_ORIGINS=${API_CORS_ALLOWED_ORIGINS:-/127.0.0.1(:[0-9]+)?$,/localhost(:[0-9]+)?$}
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KUBELET_PORT=${KUBELET_PORT:-10250}
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LOG_LEVEL=${LOG_LEVEL:-3}
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CONTAINER_RUNTIME=${CONTAINER_RUNTIME:-"docker"}
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CONTAINER_RUNTIME_ENDPOINT=${CONTAINER_RUNTIME_ENDPOINT:-""}
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IMAGE_SERVICE_ENDPOINT=${IMAGE_SERVICE_ENDPOINT:-""}
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RKT_PATH=${RKT_PATH:-""}
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RKT_STAGE1_IMAGE=${RKT_STAGE1_IMAGE:-""}
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CHAOS_CHANCE=${CHAOS_CHANCE:-0.0}
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CPU_CFS_QUOTA=${CPU_CFS_QUOTA:-true}
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ENABLE_HOSTPATH_PROVISIONER=${ENABLE_HOSTPATH_PROVISIONER:-"false"}
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CLAIM_BINDER_SYNC_PERIOD=${CLAIM_BINDER_SYNC_PERIOD:-"15s"} # current k8s default
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ENABLE_CONTROLLER_ATTACH_DETACH=${ENABLE_CONTROLLER_ATTACH_DETACH:-"true"} # current default
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# This is the default dir and filename where the apiserver will generate a self-signed cert
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# which should be able to be used as the CA to verify itself
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CERT_DIR=${CERT_DIR:-"/var/run/kubernetes"}
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ROOT_CA_FILE=$CERT_DIR/apiserver.crt
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EXPERIMENTAL_CRI=${EXPERIMENTAL_CRI:-"false"}
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DISCOVERY_SECURE_PORT=${DISCOVERY_SECURE_PORT:-9090}
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# Ensure CERT_DIR is created for auto-generated crt/key and kubeconfig
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mkdir -p "${CERT_DIR}" &>/dev/null || sudo mkdir -p "${CERT_DIR}"
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CONTROLPLANE_SUDO=$(test -w "${CERT_DIR}" || echo "sudo -E")
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function test_apiserver_off {
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# For the common local scenario, fail fast if server is already running.
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# this can happen if you run local-up-cluster.sh twice and kill etcd in between.
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if [[ "${API_PORT}" -gt "0" ]]; then
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curl --silent -g $API_HOST:$API_PORT
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if [ ! $? -eq 0 ]; then
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echo "API SERVER insecure port is free, proceeding..."
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else
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echo "ERROR starting API SERVER, exiting. Some process on $API_HOST is serving already on $API_PORT"
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exit 1
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fi
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fi
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curl --silent -k -g $API_HOST:$API_SECURE_PORT
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if [ ! $? -eq 0 ]; then
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echo "API SERVER secure port is free, proceeding..."
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else
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echo "ERROR starting API SERVER, exiting. Some process on $API_HOST is serving already on $API_SECURE_PORT"
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exit 1
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fi
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}
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function detect_binary {
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# Detect the OS name/arch so that we can find our binary
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case "$(uname -s)" in
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Darwin)
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host_os=darwin
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;;
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Linux)
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host_os=linux
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;;
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*)
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echo "Unsupported host OS. Must be Linux or Mac OS X." >&2
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exit 1
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;;
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esac
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case "$(uname -m)" in
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x86_64*)
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host_arch=amd64
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;;
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i?86_64*)
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host_arch=amd64
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;;
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amd64*)
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host_arch=amd64
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;;
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aarch64*)
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host_arch=arm64
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;;
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arm64*)
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host_arch=arm64
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;;
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arm*)
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host_arch=arm
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;;
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i?86*)
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host_arch=x86
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;;
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s390x*)
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host_arch=s390x
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;;
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ppc64le*)
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host_arch=ppc64le
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;;
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*)
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echo "Unsupported host arch. Must be x86_64, 386, arm, arm64, s390x or ppc64le." >&2
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exit 1
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;;
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esac
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GO_OUT="${KUBE_ROOT}/_output/local/bin/${host_os}/${host_arch}"
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}
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cleanup_dockerized_kubelet()
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{
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if [[ -e $KUBELET_CIDFILE ]]; then
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docker kill $(<$KUBELET_CIDFILE) > /dev/null
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rm -f $KUBELET_CIDFILE
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fi
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}
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cleanup()
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{
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echo "Cleaning up..."
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# delete running images
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# if [[ "${ENABLE_CLUSTER_DNS}" = true ]]; then
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# Still need to figure why this commands throw an error: Error from server: client: etcd cluster is unavailable or misconfigured
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# ${KUBECTL} --namespace=kube-system delete service kube-dns
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# And this one hang forever:
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# ${KUBECTL} --namespace=kube-system delete rc kube-dns-v10
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# fi
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# Check if the API server is still running
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[[ -n "${APISERVER_PID-}" ]] && APISERVER_PIDS=$(pgrep -P ${APISERVER_PID} ; ps -o pid= -p ${APISERVER_PID})
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[[ -n "${APISERVER_PIDS-}" ]] && sudo kill ${APISERVER_PIDS}
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# Check if the discovery server is still running
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[[ -n "${DISCOVERY_PID-}" ]] && DISCOVERY_PIDS=$(pgrep -P ${DISCOVERY_PID} ; ps -o pid= -p ${DISCOVERY_PID})
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[[ -n "${DISCOVERY_PIDS-}" ]] && sudo kill ${DISCOVERY_PIDS}
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# Check if the controller-manager is still running
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[[ -n "${CTLRMGR_PID-}" ]] && CTLRMGR_PIDS=$(pgrep -P ${CTLRMGR_PID} ; ps -o pid= -p ${CTLRMGR_PID})
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[[ -n "${CTLRMGR_PIDS-}" ]] && sudo kill ${CTLRMGR_PIDS}
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if [[ -n "$DOCKERIZE_KUBELET" ]]; then
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cleanup_dockerized_kubelet
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else
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# Check if the kubelet is still running
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[[ -n "${KUBELET_PID-}" ]] && KUBELET_PIDS=$(pgrep -P ${KUBELET_PID} ; ps -o pid= -p ${KUBELET_PID})
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[[ -n "${KUBELET_PIDS-}" ]] && sudo kill ${KUBELET_PIDS}
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fi
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# Check if the proxy is still running
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[[ -n "${PROXY_PID-}" ]] && PROXY_PIDS=$(pgrep -P ${PROXY_PID} ; ps -o pid= -p ${PROXY_PID})
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[[ -n "${PROXY_PIDS-}" ]] && sudo kill ${PROXY_PIDS}
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# Check if the scheduler is still running
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[[ -n "${SCHEDULER_PID-}" ]] && SCHEDULER_PIDS=$(pgrep -P ${SCHEDULER_PID} ; ps -o pid= -p ${SCHEDULER_PID})
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[[ -n "${SCHEDULER_PIDS-}" ]] && sudo kill ${SCHEDULER_PIDS}
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# Check if the etcd is still running
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[[ -n "${ETCD_PID-}" ]] && kube::etcd::stop
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[[ -n "${ETCD_DIR-}" ]] && kube::etcd::clean_etcd_dir
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exit 0
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}
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function start_etcd {
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echo "Starting etcd"
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kube::etcd::start
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}
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function set_service_accounts {
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SERVICE_ACCOUNT_LOOKUP=${SERVICE_ACCOUNT_LOOKUP:-false}
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SERVICE_ACCOUNT_KEY=${SERVICE_ACCOUNT_KEY:-/tmp/kube-serviceaccount.key}
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# Generate ServiceAccount key if needed
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if [[ ! -f "${SERVICE_ACCOUNT_KEY}" ]]; then
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mkdir -p "$(dirname ${SERVICE_ACCOUNT_KEY})"
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openssl genrsa -out "${SERVICE_ACCOUNT_KEY}" 2048 2>/dev/null
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fi
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}
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function create_client_certkey {
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local CA=$1
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local ID=$2
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local CN=${3:-$2}
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local NAMES=""
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local SEP=""
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shift 3
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while [ -n "${1:-}" ]; do
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NAMES+="${SEP}{\"O\":\"$1\"}"
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SEP=","
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shift 1
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done
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echo "{\"CN\":\"${CN}\",\"names\":[${NAMES}],\"hosts\":[\"\"],\"key\":{\"algo\":\"rsa\",\"size\":2048}}" | docker run -i --entrypoint /bin/bash -v "${CERT_DIR}:/certs" -w /certs cfssl/cfssl:latest -ec "cfssl gencert -ca=${CA}.crt -ca-key=${CA}.key -config=client-ca-config.json - | cfssljson -bare client-${ID}"
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${CONTROLPLANE_SUDO} /bin/bash -e <<EOF
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mv "${CERT_DIR}/client-${ID}-key.pem" "${CERT_DIR}/client-${ID}.key"
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mv "${CERT_DIR}/client-${ID}.pem" "${CERT_DIR}/client-${ID}.crt"
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rm -f "${CERT_DIR}/client-${ID}.csr"
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EOF
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}
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function write_client_kubeconfig {
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cat <<EOF | ${CONTROLPLANE_SUDO} tee "${CERT_DIR}"/$1.kubeconfig > /dev/null
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apiVersion: v1
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kind: Config
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clusters:
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- cluster:
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certificate-authority: ${ROOT_CA_FILE}
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server: https://${API_HOST}:${API_SECURE_PORT}/
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name: local-up-cluster
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users:
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- user:
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token: ${KUBECONFIG_TOKEN:-}
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client-certificate: ${CERT_DIR}/client-$1.crt
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client-key: ${CERT_DIR}/client-$1.key
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name: local-up-cluster
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contexts:
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- context:
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cluster: local-up-cluster
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user: local-up-cluster
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name: local-up-cluster
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current-context: local-up-cluster
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EOF
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}
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function start_apiserver {
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security_admission=""
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if [[ -z "${ALLOW_SECURITY_CONTEXT}" ]]; then
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security_admission=",SecurityContextDeny"
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fi
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if [[ -n "${PSP_ADMISSION}" ]]; then
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security_admission=",PodSecurityPolicy"
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fi
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# Admission Controllers to invoke prior to persisting objects in cluster
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ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount${security_admission},ResourceQuota,DefaultStorageClass
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# This is the default dir and filename where the apiserver will generate a self-signed cert
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# which should be able to be used as the CA to verify itself
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anytoken_arg=""
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if [[ "${ALLOW_ANY_TOKEN}" = true ]]; then
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anytoken_arg="--insecure-allow-any-token "
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KUBECONFIG_TOKEN=${KUBECONFIG_TOKEN:-"system:admin/system:masters"}
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fi
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authorizer_arg=""
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if [[ "${ENABLE_RBAC}" = true ]]; then
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authorizer_arg="--authorization-mode=RBAC "
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fi
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priv_arg=""
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if [[ -n "${ALLOW_PRIVILEGED}" ]]; then
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priv_arg="--allow-privileged "
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fi
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runtime_config=""
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if [[ -n "${RUNTIME_CONFIG}" ]]; then
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runtime_config="--runtime-config=${RUNTIME_CONFIG}"
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fi
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# Let the API server pick a default address when API_HOST
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# is set to 127.0.0.1
|
|
advertise_address=""
|
|
if [[ "${API_HOST}" != "127.0.0.1" ]]; then
|
|
advertise_address="--advertise_address=${API_HOST_IP}"
|
|
fi
|
|
|
|
# Create client ca
|
|
${CONTROLPLANE_SUDO} /bin/bash -e <<EOF
|
|
rm -f "${CERT_DIR}/client-ca.crt" "${CERT_DIR}/client-ca.key"
|
|
openssl req -x509 -sha256 -new -nodes -days 365 -newkey rsa:2048 -keyout "${CERT_DIR}/client-ca.key" -out "${CERT_DIR}/client-ca.crt" -subj "/C=xx/ST=x/L=x/O=x/OU=x/CN=ca/emailAddress=x/"
|
|
echo '{"signing":{"default":{"expiry":"43800h","usages":["signing","key encipherment","client auth"]}}}' > "${CERT_DIR}/client-ca-config.json"
|
|
EOF
|
|
|
|
# Create client certs signed with client-ca, given id, given CN and a number of groups
|
|
# NOTE: system:masters will be removed in the future
|
|
create_client_certkey client-ca kubelet system:node:${HOSTNAME_OVERRIDE} system:nodes
|
|
create_client_certkey client-ca kube-proxy system:kube-proxy system:nodes
|
|
create_client_certkey client-ca controller system:controller system:masters
|
|
create_client_certkey client-ca scheduler system:scheduler system:masters
|
|
create_client_certkey client-ca admin system:admin system:masters
|
|
|
|
# Create auth proxy client ca
|
|
sudo /bin/bash -e <<EOF
|
|
rm -f "${CERT_DIR}/auth-proxy-client-ca.crt" "${CERT_DIR}/auth-proxy-client-ca.key"
|
|
openssl req -x509 -sha256 -new -nodes -days 365 -newkey rsa:2048 -keyout "${CERT_DIR}/auth-proxy-client-ca.key" -out "${CERT_DIR}/auth-proxy-client-ca.crt" -subj "/C=xx/ST=x/L=x/O=x/OU=x/CN=ca/emailAddress=x/"
|
|
echo '{"signing":{"default":{"expiry":"43800h","usages":["signing","key encipherment","client auth"]}}}' > "${CERT_DIR}/auth-proxy-client-ca-config.json"
|
|
EOF
|
|
create_client_certkey auth-proxy-client-ca auth-proxy system:auth-proxy
|
|
|
|
APISERVER_LOG=/tmp/kube-apiserver.log
|
|
${CONTROLPLANE_SUDO} "${GO_OUT}/hyperkube" apiserver ${anytoken_arg} ${authorizer_arg} ${priv_arg} ${runtime_config}\
|
|
${advertise_address} \
|
|
--v=${LOG_LEVEL} \
|
|
--cert-dir="${CERT_DIR}" \
|
|
--client-ca-file="${CERT_DIR}/client-ca.crt" \
|
|
--service-account-key-file="${SERVICE_ACCOUNT_KEY}" \
|
|
--service-account-lookup="${SERVICE_ACCOUNT_LOOKUP}" \
|
|
--admission-control="${ADMISSION_CONTROL}" \
|
|
--bind-address="${API_BIND_ADDR}" \
|
|
--secure-port="${API_SECURE_PORT}" \
|
|
--tls-ca-file="${ROOT_CA_FILE}" \
|
|
--insecure-bind-address="${API_HOST_IP}" \
|
|
--insecure-port="${API_PORT}" \
|
|
--etcd-servers="http://${ETCD_HOST}:${ETCD_PORT}" \
|
|
--service-cluster-ip-range="${SERVICE_CLUSTER_IP_RANGE}" \
|
|
--feature-gates="${FEATURE_GATES}" \
|
|
--cloud-provider="${CLOUD_PROVIDER}" \
|
|
--cloud-config="${CLOUD_CONFIG}" \
|
|
--requestheader-username-headers=X-Remote-User \
|
|
--requestheader-group-headers=X-Remote-Group \
|
|
--requestheader-extra-headers-prefix=X-Remote-Extra- \
|
|
--requestheader-client-ca-file="${CERT_DIR}/auth-proxy-client-ca.crt" \
|
|
--requestheader-allowed-names=system:auth-proxy \
|
|
--cors-allowed-origins="${API_CORS_ALLOWED_ORIGINS}" >"${APISERVER_LOG}" 2>&1 &
|
|
APISERVER_PID=$!
|
|
|
|
# Wait for kube-apiserver to come up before launching the rest of the components.
|
|
echo "Waiting for apiserver to come up"
|
|
kube::util::wait_for_url "https://${API_HOST}:${API_SECURE_PORT}/version" "apiserver: " 1 ${WAIT_FOR_URL_API_SERVER} || exit 1
|
|
|
|
# Create kubeconfigs for all components, using client certs
|
|
write_client_kubeconfig admin
|
|
write_client_kubeconfig kubelet
|
|
write_client_kubeconfig kube-proxy
|
|
write_client_kubeconfig controller
|
|
write_client_kubeconfig scheduler
|
|
|
|
if [[ -z "${AUTH_ARGS}" ]]; then
|
|
if [[ "${ALLOW_ANY_TOKEN}" = true ]]; then
|
|
# use token authentication
|
|
if [[ -n "${KUBECONFIG_TOKEN}" ]]; then
|
|
AUTH_ARGS="--token=${KUBECONFIG_TOKEN}"
|
|
else
|
|
AUTH_ARGS="--token=system:admin/system:masters"
|
|
fi
|
|
else
|
|
# default to use basic authentication
|
|
AUTH_ARGS="--username=admin --password=admin"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# start_discovery relies on certificates created by start_apiserver
|
|
function start_discovery {
|
|
# TODO generate serving certificates
|
|
create_client_certkey client-ca discovery-auth system:discovery-auth
|
|
write_client_kubeconfig discovery-auth
|
|
|
|
# grant permission to run delegated authentication and authorization checks
|
|
kubectl create clusterrolebinding discovery:system:auth-delegator --clusterrole=system:auth-delegator --user=system:discovery-auth
|
|
|
|
DISCOVERY_SERVER_LOG=/tmp/kubernetes-discovery.log
|
|
${CONTROLPLANE_SUDO} "${GO_OUT}/kubernetes-discovery" \
|
|
--cert-dir="${CERT_DIR}" \
|
|
--client-ca-file="${CERT_DIR}/client-ca-bundle.crt" \
|
|
--authentication-kubeconfig="${CERT_DIR}/discovery-auth.kubeconfig" \
|
|
--authorization-kubeconfig="${CERT_DIR}/discovery-auth.kubeconfig" \
|
|
--requestheader-username-headers=X-Remote-User \
|
|
--requestheader-group-headers=X-Remote-Group \
|
|
--requestheader-extra-headers-prefix=X-Remote-Extra- \
|
|
--requestheader-client-ca-file="${CERT_DIR}/auth-proxy-client-ca.crt" \
|
|
--requestheader-allowed-names=system:auth-proxy \
|
|
--bind-address="${API_BIND_ADDR}" \
|
|
--secure-port="${DISCOVERY_SECURE_PORT}" \
|
|
--tls-ca-file="${ROOT_CA_FILE}" \
|
|
--etcd-servers="http://${ETCD_HOST}:${ETCD_PORT}" >"${DISCOVERY_SERVER_LOG}" 2>&1 &
|
|
DISCOVERY_PID=$!
|
|
|
|
# Wait for kubernetes-discovery to come up before launching the rest of the components.
|
|
echo "Waiting for kubernetes-discovery to come up"
|
|
kube::util::wait_for_url "https://${API_HOST}:${DISCOVERY_SECURE_PORT}/version" "kubernetes-discovery: " 1 ${WAIT_FOR_URL_API_SERVER} || exit 1
|
|
}
|
|
|
|
|
|
function start_controller_manager {
|
|
node_cidr_args=""
|
|
if [[ "${NET_PLUGIN}" == "kubenet" ]]; then
|
|
node_cidr_args="--allocate-node-cidrs=true --cluster-cidr=10.1.0.0/16 "
|
|
fi
|
|
|
|
CTLRMGR_LOG=/tmp/kube-controller-manager.log
|
|
${CONTROLPLANE_SUDO} "${GO_OUT}/hyperkube" controller-manager \
|
|
--v=${LOG_LEVEL} \
|
|
--service-account-private-key-file="${SERVICE_ACCOUNT_KEY}" \
|
|
--root-ca-file="${ROOT_CA_FILE}" \
|
|
--enable-hostpath-provisioner="${ENABLE_HOSTPATH_PROVISIONER}" \
|
|
${node_cidr_args} \
|
|
--pvclaimbinder-sync-period="${CLAIM_BINDER_SYNC_PERIOD}" \
|
|
--feature-gates="${FEATURE_GATES}" \
|
|
--cloud-provider="${CLOUD_PROVIDER}" \
|
|
--cloud-config="${CLOUD_CONFIG}" \
|
|
--kubeconfig "$CERT_DIR"/controller.kubeconfig \
|
|
--master="https://${API_HOST}:${API_SECURE_PORT}" >"${CTLRMGR_LOG}" 2>&1 &
|
|
CTLRMGR_PID=$!
|
|
}
|
|
|
|
function start_kubelet {
|
|
KUBELET_LOG=/tmp/kubelet.log
|
|
|
|
priv_arg=""
|
|
if [[ -n "${ALLOW_PRIVILEGED}" ]]; then
|
|
priv_arg="--allow-privileged "
|
|
fi
|
|
|
|
mkdir -p /var/lib/kubelet
|
|
if [[ -z "${DOCKERIZE_KUBELET}" ]]; then
|
|
# Enable dns
|
|
if [[ "${ENABLE_CLUSTER_DNS}" = true ]]; then
|
|
dns_args="--cluster-dns=${DNS_SERVER_IP} --cluster-domain=${DNS_DOMAIN}"
|
|
else
|
|
# To start a private DNS server set ENABLE_CLUSTER_DNS and
|
|
# DNS_SERVER_IP/DOMAIN. This will at least provide a working
|
|
# DNS server for real world hostnames.
|
|
dns_args="--cluster-dns=8.8.8.8"
|
|
fi
|
|
|
|
net_plugin_args=""
|
|
if [[ -n "${NET_PLUGIN}" ]]; then
|
|
net_plugin_args="--network-plugin=${NET_PLUGIN}"
|
|
fi
|
|
|
|
auth_args=""
|
|
if [[ -n "${KUBELET_AUTHORIZATION_WEBHOOK:-}" ]]; then
|
|
auth_args="${auth_args} --authorization-mode=Webhook"
|
|
fi
|
|
if [[ -n "${KUBELET_AUTHENTICATION_WEBHOOK:-}" ]]; then
|
|
auth_args="${auth_args} --authentication-token-webhook"
|
|
fi
|
|
if [[ -n "${CLIENT_CA_FILE:-}" ]]; then
|
|
auth_args="${auth_args} --client-ca-file=${CLIENT_CA_FILE}"
|
|
fi
|
|
|
|
net_plugin_dir_args=""
|
|
if [[ -n "${NET_PLUGIN_DIR}" ]]; then
|
|
net_plugin_dir_args="--network-plugin-dir=${NET_PLUGIN_DIR}"
|
|
fi
|
|
|
|
container_runtime_endpoint_args=""
|
|
if [[ -n "${CONTAINER_RUNTIME_ENDPOINT}" ]]; then
|
|
container_runtime_endpoint_args="--container-runtime-endpoint=${CONTAINER_RUNTIME_ENDPOINT}"
|
|
fi
|
|
|
|
image_service_endpoint_args=""
|
|
if [[ -n "${IMAGE_SERVICE_ENDPOINT}" ]]; then
|
|
image_service_endpoint_args="--image-service-endpoint=${IMAGE_SERVICE_ENDPOINT}"
|
|
fi
|
|
|
|
sudo -E "${GO_OUT}/hyperkube" kubelet ${priv_arg}\
|
|
--v=${LOG_LEVEL} \
|
|
--chaos-chance="${CHAOS_CHANCE}" \
|
|
--container-runtime="${CONTAINER_RUNTIME}" \
|
|
--experimental-cri=${EXPERIMENTAL_CRI} \
|
|
--rkt-path="${RKT_PATH}" \
|
|
--rkt-stage1-image="${RKT_STAGE1_IMAGE}" \
|
|
--hostname-override="${HOSTNAME_OVERRIDE}" \
|
|
--cloud-provider="${CLOUD_PROVIDER}" \
|
|
--cloud-config="${CLOUD_CONFIG}" \
|
|
--address="${KUBELET_HOST}" \
|
|
--require-kubeconfig \
|
|
--kubeconfig "$CERT_DIR"/kubelet.kubeconfig \
|
|
--feature-gates="${FEATURE_GATES}" \
|
|
--cpu-cfs-quota=${CPU_CFS_QUOTA} \
|
|
--enable-controller-attach-detach="${ENABLE_CONTROLLER_ATTACH_DETACH}" \
|
|
--experimental-cgroups-per-qos=${EXPERIMENTAL_CGROUPS_PER_QOS} \
|
|
--cgroup-driver=${CGROUP_DRIVER} \
|
|
--cgroup-root=${CGROUP_ROOT} \
|
|
${auth_args} \
|
|
${dns_args} \
|
|
${net_plugin_dir_args} \
|
|
${net_plugin_args} \
|
|
${container_runtime_endpoint_args} \
|
|
${image_service_endpoint_args} \
|
|
--port="$KUBELET_PORT" >"${KUBELET_LOG}" 2>&1 &
|
|
KUBELET_PID=$!
|
|
# Quick check that kubelet is running.
|
|
if ps -p $KUBELET_PID > /dev/null ; then
|
|
echo "kubelet ( $KUBELET_PID ) is running."
|
|
else
|
|
cat ${KUBELET_LOG} ; exit 1
|
|
fi
|
|
else
|
|
# Docker won't run a container with a cidfile (container id file)
|
|
# unless that file does not already exist; clean up an existing
|
|
# dockerized kubelet that might be running.
|
|
cleanup_dockerized_kubelet
|
|
cred_bind=""
|
|
# path to cloud credentials.
|
|
cloud_cred=""
|
|
if [ "${CLOUD_PROVIDER}" == "aws" ]; then
|
|
cloud_cred="${HOME}/.aws/credentials"
|
|
fi
|
|
if [ "${CLOUD_PROVIDER}" == "gce" ]; then
|
|
cloud_cred="${HOME}/.config/gcloud"
|
|
fi
|
|
if [ "${CLOUD_PROVIDER}" == "openstack" ]; then
|
|
cloud_cred="${CLOUD_CONFIG}"
|
|
fi
|
|
if [[ -n "${cloud_cred}" ]]; then
|
|
cred_bind="--volume=${cloud_cred}:${cloud_cred}:ro"
|
|
fi
|
|
|
|
docker run \
|
|
--volume=/:/rootfs:ro \
|
|
--volume=/var/run:/var/run:rw \
|
|
--volume=/sys:/sys:ro \
|
|
--volume=/var/lib/docker/:/var/lib/docker:ro \
|
|
--volume=/var/lib/kubelet/:/var/lib/kubelet:rw \
|
|
--volume=/dev:/dev \
|
|
${cred_bind} \
|
|
--net=host \
|
|
--privileged=true \
|
|
-i \
|
|
--cidfile=$KUBELET_CIDFILE \
|
|
gcr.io/google_containers/kubelet \
|
|
/kubelet --v=${LOG_LEVEL} --containerized ${priv_arg}--chaos-chance="${CHAOS_CHANCE}" --hostname-override="${HOSTNAME_OVERRIDE}" --cloud-provider="${CLOUD_PROVIDER}" --cloud-config="${CLOUD_CONFIG}" \ --address="127.0.0.1" --require-kubeconfig --kubeconfig "$CERT_DIR"/kubelet.kubeconfig --api-servers="https://${API_HOST}:${API_SECURE_PORT}" --port="$KUBELET_PORT" --enable-controller-attach-detach="${ENABLE_CONTROLLER_ATTACH_DETACH}" &> $KUBELET_LOG &
|
|
fi
|
|
}
|
|
|
|
function start_kubeproxy {
|
|
PROXY_LOG=/tmp/kube-proxy.log
|
|
sudo "${GO_OUT}/hyperkube" proxy \
|
|
--v=${LOG_LEVEL} \
|
|
--hostname-override="${HOSTNAME_OVERRIDE}" \
|
|
--feature-gates="${FEATURE_GATES}" \
|
|
--kubeconfig "$CERT_DIR"/kube-proxy.kubeconfig \
|
|
--master="https://${API_HOST}:${API_SECURE_PORT}" >"${PROXY_LOG}" 2>&1 &
|
|
PROXY_PID=$!
|
|
|
|
SCHEDULER_LOG=/tmp/kube-scheduler.log
|
|
${CONTROLPLANE_SUDO} "${GO_OUT}/hyperkube" scheduler \
|
|
--v=${LOG_LEVEL} \
|
|
--kubeconfig "$CERT_DIR"/scheduler.kubeconfig \
|
|
--master="https://${API_HOST}:${API_SECURE_PORT}" >"${SCHEDULER_LOG}" 2>&1 &
|
|
SCHEDULER_PID=$!
|
|
}
|
|
|
|
function start_kubedns {
|
|
|
|
if [[ "${ENABLE_CLUSTER_DNS}" = true ]]; then
|
|
echo "Creating kube-system namespace"
|
|
sed -e "s/{{ pillar\['dns_replicas'\] }}/${DNS_REPLICAS}/g;s/{{ pillar\['dns_domain'\] }}/${DNS_DOMAIN}/g;" "${KUBE_ROOT}/cluster/addons/dns/skydns-rc.yaml.in" >| skydns-rc.yaml
|
|
if [[ "${FEDERATION:-}" == "true" ]]; then
|
|
FEDERATIONS_DOMAIN_MAP="${FEDERATIONS_DOMAIN_MAP:-}"
|
|
if [[ -z "${FEDERATIONS_DOMAIN_MAP}" && -n "${FEDERATION_NAME:-}" && -n "${DNS_ZONE_NAME:-}" ]]; then
|
|
FEDERATIONS_DOMAIN_MAP="${FEDERATION_NAME}=${DNS_ZONE_NAME}"
|
|
fi
|
|
if [[ -n "${FEDERATIONS_DOMAIN_MAP}" ]]; then
|
|
sed -i -e "s/{{ pillar\['federations_domain_map'\] }}/- --federations=${FEDERATIONS_DOMAIN_MAP}/g" skydns-rc.yaml
|
|
else
|
|
sed -i -e "/{{ pillar\['federations_domain_map'\] }}/d" skydns-rc.yaml
|
|
fi
|
|
else
|
|
sed -i -e "/{{ pillar\['federations_domain_map'\] }}/d" skydns-rc.yaml
|
|
fi
|
|
sed -e "s/{{ pillar\['dns_server'\] }}/${DNS_SERVER_IP}/g" "${KUBE_ROOT}/cluster/addons/dns/skydns-svc.yaml.in" >| skydns-svc.yaml
|
|
export KUBERNETES_PROVIDER=local
|
|
${KUBECTL} config set-cluster local --server=https://${API_HOST}:${API_SECURE_PORT} --certificate-authority=${ROOT_CA_FILE}
|
|
${KUBECTL} config set-credentials myself --username=admin --password=admin
|
|
${KUBECTL} config set-context local --cluster=local --user=myself
|
|
${KUBECTL} config use-context local
|
|
|
|
# use kubectl to create skydns rc and service
|
|
${KUBECTL} --namespace=kube-system create -f skydns-rc.yaml
|
|
${KUBECTL} --namespace=kube-system create -f skydns-svc.yaml
|
|
echo "Kube-dns rc and service successfully deployed."
|
|
fi
|
|
|
|
}
|
|
|
|
function print_success {
|
|
if [[ "${START_MODE}" != "kubeletonly" ]]; then
|
|
cat <<EOF
|
|
Local Kubernetes cluster is running. Press Ctrl-C to shut it down.
|
|
|
|
Logs:
|
|
${APISERVER_LOG:-}
|
|
${CTLRMGR_LOG:-}
|
|
${PROXY_LOG:-}
|
|
${SCHEDULER_LOG:-}
|
|
EOF
|
|
fi
|
|
|
|
if [[ "${START_MODE}" == "all" ]]; then
|
|
echo " ${KUBELET_LOG}"
|
|
elif [[ "${START_MODE}" == "nokubelet" ]]; then
|
|
echo
|
|
echo "No kubelet was started because you set START_MODE=nokubelet"
|
|
echo "Run this script again with START_MODE=kubeletonly to run a kubelet"
|
|
fi
|
|
|
|
if [[ "${START_MODE}" != "kubeletonly" ]]; then
|
|
echo
|
|
cat <<EOF
|
|
To start using your cluster, open up another terminal/tab and run:
|
|
|
|
export KUBERNETES_PROVIDER=local
|
|
|
|
cluster/kubectl.sh config set-cluster local --server=https://${API_HOST}:${API_SECURE_PORT} --certificate-authority=${ROOT_CA_FILE}
|
|
cluster/kubectl.sh config set-credentials myself ${AUTH_ARGS}
|
|
cluster/kubectl.sh config set-context local --cluster=local --user=myself
|
|
cluster/kubectl.sh config use-context local
|
|
cluster/kubectl.sh
|
|
EOF
|
|
else
|
|
cat <<EOF
|
|
The kubelet was started.
|
|
|
|
Logs:
|
|
${KUBELET_LOG}
|
|
EOF
|
|
fi
|
|
}
|
|
|
|
if [[ "${CONTAINER_RUNTIME}" == "docker" ]]; then
|
|
test_docker
|
|
fi
|
|
|
|
if [[ "${CONTAINER_RUNTIME}" == "rkt" ]]; then
|
|
test_rkt
|
|
fi
|
|
|
|
if [[ "${START_MODE}" != "kubeletonly" ]]; then
|
|
test_apiserver_off
|
|
fi
|
|
|
|
test_openssl_installed
|
|
|
|
### IF the user didn't supply an output/ for the build... Then we detect.
|
|
if [ "$GO_OUT" == "" ]; then
|
|
detect_binary
|
|
fi
|
|
echo "Detected host and ready to start services. Doing some housekeeping first..."
|
|
echo "Using GO_OUT $GO_OUT"
|
|
KUBELET_CIDFILE=/tmp/kubelet.cid
|
|
if [[ "${ENABLE_DAEMON}" = false ]]; then
|
|
trap cleanup EXIT
|
|
fi
|
|
|
|
echo "Starting services now!"
|
|
if [[ "${START_MODE}" != "kubeletonly" ]]; then
|
|
start_etcd
|
|
set_service_accounts
|
|
start_apiserver
|
|
start_discovery
|
|
start_controller_manager
|
|
start_kubeproxy
|
|
start_kubedns
|
|
fi
|
|
|
|
if [[ "${START_MODE}" != "nokubelet" ]]; then
|
|
start_kubelet
|
|
fi
|
|
|
|
print_success
|
|
|
|
if [[ "${ENABLE_DAEMON}" = false ]]; then
|
|
while true; do sleep 1; done
|
|
fi
|