8b99dd6fb1
In order to make the etcd instances of the VMs join into a single cluster,
we used to use the discovery mechanism.
This made the cluster bootstrap dependent on an external etcd cluster instance.
74601ea replaced the dependency on discovery.etcd.io by a local etcd cluster.
This change completely gets rid of the dynamic discovery mechanism in favor
of the static configuration method.
This should be both safe and light since it completely removes the need of having
an external etcd cluster running somewhere (either discovery.etcd.io, or locally).
117 lines
2.7 KiB
YAML
117 lines
2.7 KiB
YAML
#cloud-config
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hostname: ${name}
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ssh_authorized_keys:
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${ssh_keys}
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write_files:
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- path: /etc/systemd/journald.conf
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permissions: 0644
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content: |
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[Journal]
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SystemMaxUse=50M
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RuntimeMaxUse=50M
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coreos:
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etcd2:
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advertise-client-urls: http://${public_ip}:2379
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initial-advertise-peer-urls: http://${public_ip}:2380
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listen-client-urls: http://0.0.0.0:2379
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listen-peer-urls: http://${public_ip}:2380
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initial-cluster-state: new
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initial-cluster: ${etcd2_initial_cluster}
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units:
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- name: static.network
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command: start
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content: |
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[Match]
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# Name=eth0
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MACAddress=52:54:00:00:00:${i}
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[Network]
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Address=${public_ip}/24
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DNS=192.168.10.254
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Gateway=192.168.10.254
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- name: cbr0.netdev
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command: start
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content: |
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[NetDev]
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Kind=bridge
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Name=cbr0
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- name: cbr0.network
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command: start
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content: |
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[Match]
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Name=cbr0
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[Network]
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Address=${MINION_CONTAINER_SUBNETS[$i]}
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[Route]
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Destination=${CONTAINER_SUBNET}
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- name: cbr0-interface.network
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command: start
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content: |
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[Match]
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# Name=eth1
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MACAddress=52:54:00:00:01:${i}
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[Network]
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Bridge=cbr0
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- name: nat.service
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command: start
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content: |
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[Unit]
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Description=NAT non container traffic
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[Service]
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ExecStart=/usr/sbin/iptables -w -t nat -A POSTROUTING -o eth0 -j MASQUERADE ! -d ${CONTAINER_SUBNET}
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RemainAfterExit=yes
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Type=oneshot
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- name: etcd2.service
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command: start
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drop-ins:
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- name: 10-override-name.conf
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content: |
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[Service]
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Environment=ETCD_NAME=%H
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- name: docker.service
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command: start
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drop-ins:
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- name: 50-opts.conf
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content: |
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[Service]
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Environment='DOCKER_OPTS=--bridge=cbr0 --iptables=false'
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- name: docker-tcp.socket
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command: start
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enable: yes
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content: |
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[Unit]
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Description=Docker Socket for the API
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[Socket]
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ListenStream=2375
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BindIPv6Only=both
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Service=docker.service
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[Install]
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WantedBy=sockets.target
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- name: opt-kubernetes.mount
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command: start
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content: |
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[Unit]
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ConditionVirtualization=|vm
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[Mount]
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What=kubernetes
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Where=/opt/kubernetes
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Options=ro,trans=virtio,version=9p2000.L
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Type=9p
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update:
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group: ${COREOS_CHANNEL:-alpha}
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reboot-strategy: off
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$( [[ ${type} =~ "master" ]] && render-template "$ROOT/user_data_master.yml" )
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$( [[ ${type} =~ "minion" ]] && render-template "$ROOT/user_data_minion.yml" )
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