mirror of https://github.com/k3s-io/k3s
Put initContainers to PodSpec for some statefulset examples.
Guangya Liu
parent
a481a5bca9
commit
49c8ed802a
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@ -77,46 +77,33 @@ spec:
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metadata:
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labels:
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app: cockroachdb
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annotations:
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# Init containers are run only once in the lifetime of a pod, before
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# it's started up for the first time. It has to exit successfully
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# before the pod's main containers are allowed to start.
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# This particular init container does a DNS lookup for other pods in
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# the set to help determine whether or not a cluster already exists.
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# If any other pods exist, it creates a file in the cockroach-data
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# directory to pass that information along to the primary container that
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# has to decide what command-line flags to use when starting CockroachDB.
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# This only matters when a pod's persistent volume is empty - if it has
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# data from a previous execution, that data will always be used.
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pod.alpha.kubernetes.io/init-containers: '[
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{
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"name": "bootstrap",
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"image": "cockroachdb/cockroach-k8s-init:0.1",
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"imagePullPolicy": "IfNotPresent",
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"args": [
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"-on-start=/on-start.sh",
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"-service=cockroachdb"
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],
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"env": [
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{
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"name": "POD_NAMESPACE",
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"valueFrom": {
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"fieldRef": {
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"apiVersion": "v1",
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"fieldPath": "metadata.namespace"
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}
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}
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}
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],
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"volumeMounts": [
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{
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"name": "datadir",
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"mountPath": "/cockroach/cockroach-data"
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}
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]
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}
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]'
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spec:
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# Init containers are run only once in the lifetime of a pod, before
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# it's started up for the first time. It has to exit successfully
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# before the pod's main containers are allowed to start.
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# This particular init container does a DNS lookup for other pods in
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# the set to help determine whether or not a cluster already exists.
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# If any other pods exist, it creates a file in the cockroach-data
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# directory to pass that information along to the primary container that
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# has to decide what command-line flags to use when starting CockroachDB.
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# This only matters when a pod's persistent volume is empty - if it has
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# data from a previous execution, that data will always be used.
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initContainers:
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- name: bootstrap
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image: cockroachdb/cockroach-k8s-init:0.1
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imagePullPolicy: IfNotPresent
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args:
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- "-on-start=/on-start.sh"
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- "-service=cockroachdb"
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env:
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- name: POD_NAMESPACE
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valueFrom:
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fieldRef:
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apiVersion: v1
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fieldPath: metadata.namespace
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volumeMounts:
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- name: datadir
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mountPath: "/cockroach/cockroach-data"
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affinity:
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podAntiAffinity:
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preferredDuringSchedulingIgnoredDuringExecution:
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@ -9,45 +9,32 @@ spec:
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metadata:
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labels:
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app: cockroachdb
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annotations:
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# Init containers are run only once in the lifetime of a pod, before
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# it's started up for the first time. It has to exit successfully
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# before the pod's main containers are allowed to start.
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# This particular init container does a DNS lookup for other pods in
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# the set to help determine whether or not a cluster already exists.
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# If any other pods exist, it creates a file in the cockroach-data
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# directory to pass that information along to the primary container that
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# has to decide what command-line flags to use when starting CockroachDB.
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# This only matters when a pod's persistent volume is empty - if it has
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# data from a previous execution, that data will always be used.
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pod.alpha.kubernetes.io/init-containers: '[
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{
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"name": "bootstrap",
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"image": "cockroachdb/cockroach-k8s-init:0.1",
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"args": [
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"-on-start=/on-start.sh",
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"-service=cockroachdb"
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],
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"env": [
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{
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"name": "POD_NAMESPACE",
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"valueFrom": {
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"fieldRef": {
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"apiVersion": "v1",
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"fieldPath": "metadata.namespace"
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}
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}
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}
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],
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"volumeMounts": [
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{
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"name": "datadir",
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"mountPath": "/cockroach/cockroach-data"
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}
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]
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}
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]'
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spec:
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# Init containers are run only once in the lifetime of a pod, before
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# it's started up for the first time. It has to exit successfully
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# before the pod's main containers are allowed to start.
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# This particular init container does a DNS lookup for other pods in
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# the set to help determine whether or not a cluster already exists.
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# If any other pods exist, it creates a file in the cockroach-data
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# directory to pass that information along to the primary container that
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# has to decide what command-line flags to use when starting CockroachDB.
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# This only matters when a pod's persistent volume is empty - if it has
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# data from a previous execution, that data will always be used.
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initContainers:
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- name: bootstrap
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image: cockroachdb/cockroach-k8s-init:0.1
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args:
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- "-on-start=/on-start.sh"
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- "-service=cockroachdb"
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env:
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- name: POD_NAMESPACE
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valueFrom:
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fieldRef:
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apiVersion: v1
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fieldPath: metadata.namespace
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volumeMounts:
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- name: datadir
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mountPath: "/cockroach/cockroach-data"
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containers:
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- name: cockroachdb
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# Runs the master branch. Not recommended for production, but since
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@ -9,53 +9,36 @@ spec:
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metadata:
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labels:
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app: mysql
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annotations:
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pod.alpha.kubernetes.io/init-containers: '[
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{
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"name": "install",
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"image": "gcr.io/google_containers/galera-install:0.1",
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"imagePullPolicy": "Always",
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"args": ["--work-dir=/work-dir"],
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"volumeMounts": [
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{
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"name": "workdir",
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"mountPath": "/work-dir"
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},
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{
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"name": "config",
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"mountPath": "/etc/mysql"
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}
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]
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},
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{
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"name": "bootstrap",
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"image": "debian:jessie",
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"command": ["/work-dir/peer-finder"],
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"args": ["-on-start=\"/work-dir/on-start.sh\"", "-service=galera"],
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"env": [
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{
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"name": "POD_NAMESPACE",
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"valueFrom": {
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"fieldRef": {
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"apiVersion": "v1",
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"fieldPath": "metadata.namespace"
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}
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}
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}
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],
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"volumeMounts": [
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{
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"name": "workdir",
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"mountPath": "/work-dir"
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},
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{
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"name": "config",
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"mountPath": "/etc/mysql"
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}
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]
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}
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]'
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spec:
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initContainers:
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- name: install
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image: gcr.io/google_containers/galera-install:0.1
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imagePullPolicy: Always
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args:
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- "--work-dir=/work-dir"
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volumeMounts:
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- name: workdir
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mountPath: "/work-dir"
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- name: config
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mountPath: "/etc/mysql"
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- name: bootstrap
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image: debian:jessie
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command:
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- "/work-dir/peer-finder"
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args:
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- -on-start="/work-dir/on-start.sh"
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- "-service=galera"
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env:
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- name: POD_NAMESPACE
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valueFrom:
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fieldRef:
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apiVersion: v1
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fieldPath: metadata.namespace
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volumeMounts:
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- name: workdir
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mountPath: "/work-dir"
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- name: config
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mountPath: "/etc/mysql"
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containers:
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- name: mysql
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image: gcr.io/google_containers/mysql-galera:e2e
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@ -9,53 +9,37 @@ spec:
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metadata:
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labels:
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app: redis
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annotations:
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pod.alpha.kubernetes.io/init-containers: '[
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{
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"name": "install",
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"image": "gcr.io/google_containers/redis-install-3.2.0:e2e",
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"imagePullPolicy": "Always",
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"args": ["--install-into=/opt", "--work-dir=/work-dir"],
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"volumeMounts": [
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{
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"name": "opt",
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"mountPath": "/opt"
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},
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{
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"name": "workdir",
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"mountPath": "/work-dir"
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}
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]
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},
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{
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"name": "bootstrap",
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"image": "debian:jessie",
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"command": ["/work-dir/peer-finder"],
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"args": ["-on-start=\"/work-dir/on-start.sh\"", "-service=redis"],
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"env": [
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{
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"name": "POD_NAMESPACE",
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"valueFrom": {
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"fieldRef": {
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"apiVersion": "v1",
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"fieldPath": "metadata.namespace"
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}
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}
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}
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],
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"volumeMounts": [
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{
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"name": "opt",
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"mountPath": "/opt"
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},
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{
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"name": "workdir",
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"mountPath": "/work-dir"
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}
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]
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}
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]'
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spec:
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initContainers:
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- name: install
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image: gcr.io/google_containers/redis-install-3.2.0:e2e
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imagePullPolicy: Always
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args:
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- "--install-into=/opt"
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- "--work-dir=/work-dir"
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volumeMounts:
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- name: opt
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mountPath: "/opt"
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- name: workdir
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mountPath: "/work-dir"
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- name: bootstrap
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image: debian:jessie
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command:
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- "/work-dir/peer-finder"
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args:
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- -on-start="/work-dir/on-start.sh"
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- "-service=redis"
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env:
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- name: POD_NAMESPACE
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valueFrom:
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fieldRef:
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apiVersion: v1
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fieldPath: metadata.namespace
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volumeMounts:
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- name: opt
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mountPath: "/opt"
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- name: workdir
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mountPath: "/work-dir"
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containers:
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- name: redis
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image: debian:jessie
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@ -9,57 +9,39 @@ spec:
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metadata:
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labels:
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app: zk
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annotations:
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pod.alpha.kubernetes.io/init-containers: '[
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{
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"name": "install",
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"image": "gcr.io/google_containers/zookeeper-install-3.5.0-alpha:e2e",
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"imagePullPolicy": "Always",
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"args": ["--install-into=/opt", "--work-dir=/work-dir"],
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"volumeMounts": [
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{
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"name": "opt",
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"mountPath": "/opt/"
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},
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{
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"name": "workdir",
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"mountPath": "/work-dir"
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}
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]
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},
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{
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"name": "bootstrap",
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"image": "java:openjdk-8-jre",
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"command": ["/work-dir/peer-finder"],
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"args": ["-on-start=\"/work-dir/on-start.sh\"", "-service=zk"],
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"env": [
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{
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"name": "POD_NAMESPACE",
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"valueFrom": {
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"fieldRef": {
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"apiVersion": "v1",
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"fieldPath": "metadata.namespace"
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}
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}
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}
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],
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"volumeMounts": [
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{
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"name": "opt",
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"mountPath": "/opt"
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},
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{
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"name": "workdir",
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"mountPath": "/work-dir"
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},
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{
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"name": "datadir",
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"mountPath": "/tmp/zookeeper"
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}
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]
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}
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]'
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spec:
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initContainers:
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- name: install
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image: gcr.io/google_containers/zookeeper-install-3.5.0-alpha:e2e
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imagePullPolicy: Always
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args:
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- "--install-into=/opt"
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- "--work-dir=/work-dir"
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volumeMounts:
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- name: opt
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mountPath: "/opt/"
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- name: workdir
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mountPath: "/work-dir"
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- name: bootstrap
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image: java:openjdk-8-jre
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command:
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- "/work-dir/peer-finder"
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args:
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- -on-start="/work-dir/on-start.sh"
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- "-service=zk"
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env:
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- name: POD_NAMESPACE
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valueFrom:
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fieldRef:
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apiVersion: v1
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fieldPath: metadata.namespace
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volumeMounts:
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- name: opt
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mountPath: "/opt"
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- name: workdir
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mountPath: "/work-dir"
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- name: datadir
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mountPath: "/tmp/zookeeper"
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containers:
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- name: zk
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image: java:openjdk-8-jre
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