6b3a6e6b98
Instead of saying "Google Inc." (which is not always correct) say "The Kubernetes Authors", which is generic.
85 lines
2.8 KiB
Bash
Executable File
85 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014 The Kubernetes Authors All rights reserved.
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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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# Validates that the cluster is healthy.
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set -o errexit
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set -o nounset
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set -o pipefail
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KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
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source "${KUBE_ROOT}/cluster/kube-env.sh"
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source "${KUBE_ROOT}/cluster/${KUBERNETES_PROVIDER}/util.sh"
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MINIONS_FILE=/tmp/minions-$$
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trap 'rm -rf "${MINIONS_FILE}"' EXIT
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# Make several attempts to deal with slow cluster birth.
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attempt=0
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while true; do
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"${KUBE_ROOT}/cluster/kubectl.sh" get nodes -o template -t $'{{range.items}}{{.metadata.name}}\n{{end}}' --api-version=v1beta3 > "${MINIONS_FILE}"
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found=$(grep -c . "${MINIONS_FILE}") || true
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if [[ ${found} == "${NUM_MINIONS}" ]]; then
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break
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else
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if (( attempt > 5 )); then
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echo -e "${color_red}Detected ${found} nodes out of ${NUM_MINIONS}. Your cluster may not be working. ${color_norm}"
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cat -n "${MINIONS_FILE}"
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exit 2
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fi
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attempt=$((attempt+1))
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sleep 30
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fi
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done
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echo "Found ${found} nodes."
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cat -n "${MINIONS_FILE}"
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attempt=0
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while true; do
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kubectl_output=$("${KUBE_ROOT}/cluster/kubectl.sh" get cs) || true
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# The "kubectl componentstatuses" output is four columns like this:
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#
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# COMPONENT HEALTH MSG ERR
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# controller-manager Healthy ok nil
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#
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# Parse the output to capture the value of the second column("HEALTH"), then use grep to
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# count the number of times it doesn't match "success".
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# Because of the header, the actual unsuccessful count is 1 minus the count.
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non_success_count=$(echo "${kubectl_output}" | \
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sed -n 's/^[[:alnum:][:punct:]]/&/p' | \
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grep --invert-match -c '^[[:alnum:][:punct:]]\{1,\}[[:space:]]\{1,\}Healthy') || true
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if ((non_success_count > 1)); then
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if ((attempt < 5)); then
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echo -e "${color_yellow}Cluster not working yet.${color_norm}"
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attempt=$((attempt+1))
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sleep 30
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else
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echo -e " ${color_yellow}Validate output:${color_norm}"
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echo "${kubectl_output}"
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echo -e "${color_red}Validation returned one or more failed components. Cluster is probably broken.${color_norm}"
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exit 1
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fi
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else
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break
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fi
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done
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echo "Validate output:"
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echo "${kubectl_output}"
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echo -e "${color_green}Cluster validation succeeded${color_norm}"
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