尝试在一个kubernetes容器中运行两个docker容器。我们面临的问题是，在Kubernetes吊舱中有2个图像/容器，而以前在该吊舱运行良好并正常关闭吊舱的情况下，我们以前只有1个图像。现在的问题是，在同一容器中有2个图像或容器时，两个图像不能同时正常关闭。
我们正在针对MongoDB数据库对容器进行集成测试，我们的容器终止了，但是MongoDB无法在此处终止并继续运行
while getopts n:c:l:i:d:t: option
do
case "${option}"
in
n) Company_NAMESPACE=$OPTARG;;
c) Company_CONFIG=$OPTARG;;
l) Company_LICENSE=$OPTARG;;
i) Company_IMAGE=$OPTARG;;
d) Company_CONTAINER_NAME=$OPTARG;;
t) Company_TOKEN=$OPTARG;;
esac
done
kubectl run $Company_CONTAINER_NAME -n $Company_NAMESPACE --restart=Never --overrides='
{
"apiVersion": "v1",
"spec": {
"imagePullSecrets": [
{
"name": "Company-regsecret"
}
],
"initContainers": [
{
"name": "copy-configs",
"image": "busybox",
"command": ["sh", "-c", "cp /tmp/Company-config-volume/server/* /tmp/ng-rt/config/server/ 2>/dev/null || true; cp /tmp/Company-license-volume/licenses/* /tmp/ng-rt/config/licenses 2>/dev/null || true"],
"volumeMounts": [
{
"name": "Company-config-volume",
"mountPath": "mount_path"
},
{
"name": "'$Company_CONFIG'",
"mountPath": "mount_path"
},
{
"name": "Company-license-volume",
"mountPath": "mount_path"
},
{
"name": "'$Company_LICENSE'",
"mountPath": "mount_path"
}
]
}
],
"containers": [
{
"name": "mongodb-test",
"image": "mongo:3.6.8",
"command": [
"numactl",
"--interleave=all",
"mongod",
"--wiredTigerCacheSizeGB",
"0.1",
"--replSet",
"MainRepSet",
"--bind_ip_all"
],
"ports": [{
"containerPort": 27017
}],
"readinessProbe": {
"exec": {
"command": ["mongo", "--eval", "rs.initiate()"]
}
},
"terminationGracePeriodSeconds": 10
},
{
"env": [
{
"name": "AWS_ACCESS_KEY_ID",
"valueFrom": {
"secretKeyRef": {
"key": "AWS_ACCESS_KEY_ID",
"name": "aws-secrets"
}
}
},
{
"name": "AWS_SECRET_ACCESS_KEY",
"valueFrom": {
"secretKeyRef": {
"key": "AWS_SECRET_ACCESS_KEY",
"name": "aws-secrets"
}
}
},
{
"name": "AWS_REGION",
"valueFrom": {
"secretKeyRef": {
"key": "AWS_REGION",
"name": "aws-secrets"
}
}
},
{
"name": "BUILD_ID",
"valueFrom": {
"configMapKeyRef": {
"key": "BUILD_ID",
"name": "config"
}
}
}
],
"command": [
"sh",
"-c",
"mkdir -p mount_path 2\u003e/dev/null && npm test --skipConnectivityTestRethinkDB"
],
"name": "'$Company_CONTAINER_NAME'",
"image": "'$Company_IMAGE'",
"volumeMounts": [
{
"mountPath": "mount_path",
"name": "'$Company_CONFIG'"
},
{
"mountPath": "mount_path",
"name": "'$Company_LICENSE'"
}
]
}
],
"volumes": [
{
"name": "Company-config-volume",
"configMap": {
"name": "'$Company_CONFIG'"
}
},
{
"name": "'$Company_CONFIG'",
"emptyDir": {}
},
{
"name": "Company-license-volume",
"configMap": {
"name": "'$Company_LICENSE'"
}
},
{
"name": "'$Company_LICENSE'",
"emptyDir": {}
}
]
}
}
' --image=$Company_IMAGE -ti --rm --token=$Company_TOKEN
{
"kind": "Pod",
"apiVersion": "v1",
"metadata": {
"name": "test-dev-58663",
"namespace": "d-int-company-dev-v2",
"labels": {
"run": "test-dev-58663"
},
"annotations": {
"kubernetes.io/psp": "nfs-provisioner"
}
},
"spec": {
"volumes": [
{
"name": "company-config-volume",
"configMap": {
"name": "test-core",
"defaultMode": 420
}
},
{
"name": "test-core",
"emptyDir": {}
},
{
"name": "company-license-volume",
"configMap": {
"name": "company-license",
"defaultMode": 420
}
},
{
"name": "company-license",
"emptyDir": {}
},
{
"name": "default-token-wqp5x",
"secret": {
"secretName": "default-token-wqp5x",
"defaultMode": 420
}
}
],
"initContainers": [
{
"name": "copy-configs",
"image": "busybox",
"command": [
"sh",
"-c",
"cp mount_path* mount_path 2>/dev/null || true; cp mount_path* mount_path 2>mount_path|| true"
],
"resources": {},
"volumeMounts": [
{
"name": "company-config-volume",
"mountPath": "mount_path"
},
{
"name": "test-core",
"mountPath": "mount_path"
},
{
"name": "company-license-volume",
"mountPath": "mount_path"
},
{
"name": "company-license",
"mountPath": "mount_path"
},
{
"name": "default-token-wqp5x",
"readOnly": true,
"mountPath": "/var/run/secrets/kubernetes.io/serviceaccount"
}
],
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"imagePullPolicy": "Always"
}
],
"containers": [
{
"name": "mongodb-test",
"image": "mongo:3.6.8",
"ports": [
{
"containerPort": 27017,
"protocol": "TCP"
}
],
"resources": {},
"volumeMounts": [
{
"name": "default-token-wqp5x",
"readOnly": true,
"mountPath": "/var/run/secrets/kubernetes.io/serviceaccount"
}
],
"readinessProbe": {
"exec": {
"command": [
"mongo",
"--eval",
"rs.initiate()"
]
},
"timeoutSeconds": 1,
"periodSeconds": 10,
"successThreshold": 1,
"failureThreshold": 3
},
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"imagePullPolicy": "IfNotPresent"
},
{
"name": "test-dev-58663",
"image": "image_path",
"command": [
"sh",
"-c",
"mkdir -p mount_path 2>/dev/null && npm test --skipConnectivityTestRethinkDB"
],
"env": [
{
"name": "AWS_ACCESS_KEY_ID",
"valueFrom": {
"secretKeyRef": {
"name": "aws-secrets",
"key": "AWS_ACCESS_KEY_ID"
}
}
},
{
"name": "AWS_SECRET_ACCESS_KEY",
"valueFrom": {
"secretKeyRef": {
"name": "aws-secrets",
"key": "AWS_SECRET_ACCESS_KEY"
}
}
},
{
"name": "AWS_REGION",
"valueFrom": {
"secretKeyRef": {
"name": "aws-secrets",
"key": "AWS_REGION"
}
}
},
{
"name": "BUILD_ID",
"valueFrom": {
"configMapKeyRef": {
"name": "tbsp-config",
"key": "BUILD_ID"
}
}
}
],
"resources": {},
"volumeMounts": [
{
"name": "test-core",
"mountPath": "mount_path"
},
{
"name": "company-license",
"mountPath": "mount_path"
},
{
"name": "default-token-wqp5x",
"readOnly": true,
"mountPath": "/var/run/secrets/kubernetes.io/serviceaccount"
}
],
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"imagePullPolicy": "IfNotPresent"
}
],
"restartPolicy": "Never",
"terminationGracePeriodSeconds": 10,
"dnsPolicy": "ClusterFirst",
"serviceAccountName": "default",
"serviceAccount": "default",
"nodeName": "pc212",
"securityContext": {},
"imagePullSecrets": [
{
"name": "company-regsecret"
}
],
"schedulerName": "default-scheduler",
"tolerations": [
{
"key": "node.kubernetes.io/not-ready",
"operator": "Exists",
"effect": "NoExecute",
"tolerationSeconds": 300
},
{
"key": "node.kubernetes.io/unreachable",
"operator": "Exists",
"effect": "NoExecute",
"tolerationSeconds": 300
}
]
},
"status": {
"phase": "Pending",
"conditions": [
{
"type": "Initialized",
"status": "True",
"lastProbeTime": null,
"lastTransitionTime": "2019-05-10T12:50:39Z"
},
{
"type": "Ready",
"status": "False",
"lastProbeTime": null,
"lastTransitionTime": "2019-05-10T12:49:54Z",
"reason": "ContainersNotReady",
"message": "containers with unready status: [mongodb-test test-dev-58663]"
},
{
"type": "PodScheduled",
"status": "True",
"lastProbeTime": null,
"lastTransitionTime": "2019-05-10T12:49:54Z"
}
],
"hostIP": "10.10.2.12",
"podIP": "172.16.4.22",
"startTime": "2019-05-10T12:49:54Z",
"initContainerStatuses": [
{
"name": "copy-configs",
"state": {
"terminated": {
"exitCode": 0,
"reason": "Completed",
"startedAt": "2019-05-10T12:50:39Z",
"finishedAt": "2019-05-10T12:50:39Z",
"containerID": "docker://1bcd12f5848e32e82f7dfde8e245223345e87f70061b789cbbabc0f798436b59"
}
},
"lastState": {},
"ready": true,
"restartCount": 0,
"image": "busybox:latest",
"imageID": "docker-pullable://busybox@sha256:0b184b74edc63924be0d7f67d16f5afbcdbe61caa1aca9312ed3b5c57792f6c1",
"containerID": "docker://1bcd12f5848e32e82f7dfde8e245223345e87f70061b789cbbabc0f798436b59"
}
],
"containerStatuses": [
{
"name": "mongodb-test",
"state": {
"waiting": {
"reason": "PodInitializing"
}
},
"lastState": {},
"ready": false,
"restartCount": 0,
"image": "mongo:3.6.8",
"imageID": ""
},
{
"name": "test-dev-58663",
"state": {
"waiting": {
"reason": "PodInitializing"
}
},
"lastState": {},
"ready": false,
"restartCount": 0,
"image": "image_path",
"imageID": ""
}
],
"qosClass": "BestEffort"
}
}
容器和托管吊舱都应正常终止。
答案 0 :(得分：0)
您的吊舱由两个容器组成，其中一个容器可以无限期运行，另一个容器可以完成运行。这是不好的做法。您应该将Pod分为两部分：Mongo Pod和集成脚本Job。您必须编写逻辑来监视Job完成，然后终止Pod和Job。您可以这样做：
kubectl apply -f integration-test.yaml
kubectl wait --for=condition=Complete --timeout=5m job/test
kubectl delete -f integration-test.yaml