Question

我尝试使用rancher REST api为rancher中现有的服务创建容器并添加容器。

我希望以下请求可以创建一个容器并将其添加到atlas-mosquitto堆栈和mosquitto服务（请参阅标签）。

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下面是一个漂亮的身体印刷品，易于阅读：

curl -u "${RANCHER_ACCESS_KEY}:${RANCHER_SECRET_KEY}" \
-X POST \
-H 'Accept: application/json' \
-H 'Content-Type: application/json' \
-d '{"count":1, "imageUuid":"docker:dummy/atlas/mosquitto:0.0.8", "name":"atlas-mosquitto_mosquitto_dummy_name", "startOnCreate":true, "labels": {"io.rancher.service.deployment.unit": "acdaf002-e1d0-4625-ba9c-3e1dbc584a14", "io.rancher.project.name": "atlas-mosquitto", "io.rancher.container.pull_image": "always", "io.rancher.scheduler.affinity:container_label_soft_ne": "io.rancher.stack_service.name=atlas-mosquitto/mosquitto", "io.rancher.service.launch.config": "io.rancher.service.primary.launch.config", "io.rancher.project_service.name": "atlas-mosquitto/mosquitto", "io.rancher.stack.name": "atlas-mosquitto", "io.rancher.stack_service.name": "atlas-mosquitto/mosquitto"},  "publishAllPorts":false, "privileged":false, "stdinOpen":false, "tty":false, "readOnly":false' \
'https://rancher-ha.dummy.info/v1/projects/1a29/containers'

以下是回复：

{
  "count": 1,
  "imageUuid": "docker:dummy\/atlas\/mosquitto:0.0.8",
  "name": "atlas-mosquitto_mosquitto_dummy_name",
  "startOnCreate": true,
  "labels": {
    "io.rancher.service.deployment.unit": "acdaf002-e1d0-4625-ba9c-3e1dbc584a14",
    "io.rancher.project.name": "atlas-mosquitto",
    "io.rancher.container.pull_image": "always",
    "io.rancher.scheduler.affinity:container_label_soft_ne": "io.rancher.stack_service.name=atlas-mosquitto\/mosquitto",
    "io.rancher.service.launch.config": "io.rancher.service.primary.launch.config",
    "io.rancher.project_service.name": "atlas-mosquitto\/mosquitto",
    "io.rancher.stack.name": "atlas-mosquitto",
    "io.rancher.stack_service.name": "atlas-mosquitto\/mosquitto"
  },
  "publishAllPorts": false,
  "privileged": false,
  "stdinOpen": false,
  "tty": false,
  "readOnly": false
}

基于此响应和此标签{ "readOnly" : false, "created" : "2016-12-07T01:15:04Z", "memory" : null, "securityOpt" : null, "createIndex" : null, "logConfig" : null, "state" : "creating", "links" : { "serviceExposeMaps" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/serviceexposemaps", "healthcheckInstanceHostMaps" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/healthcheckinstancehostmaps", "instances" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/instances", "services" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/services", "ports" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/ports", "hosts" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/hosts", "instanceLinks" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/instancelinks", "credentials" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/credentials", "volumes" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/volumes", "account" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/account", "serviceEvents" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/serviceevents", "stats" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/stats", "mounts" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/mounts", "targetInstanceLinks" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/targetinstancelinks", "self" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139", "instanceLabels" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/instancelabels", "containerStats" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/containerstats" }, "labels" : { "io.rancher.container.pull_image" : "always", "io.rancher.project.name" : "atlas-mosquitto", "io.rancher.stack.name" : "atlas-mosquitto", "io.rancher.stack_service.name" : "atlas-mosquitto/mosquitto", "io.rancher.service.deployment.unit" : "acdaf002-e1d0-4625-ba9c-3e1dbc584a14", "io.rancher.scheduler.affinity:container_label_soft_ne" : "io.rancher.stack_service.name=atlas-mosquitto/mosquitto", "io.rancher.service.launch.config" : "io.rancher.service.primary.launch.config", "io.rancher.project_service.name" : "atlas-mosquitto/mosquitto" }, "dnsSearch" : null, "startCount" : 0, "privileged" : false, "workingDir" : null, "id" : "1i9139", "uuid" : "bc64996c-4a9f-40bd-91bc-e352d84604aa", "transitioningProgress" : null, "lxcConf" : null, "hostId" : null, "pidMode" : null, "transitioningMessage" : "In Progress", "requestedHostId" : null, "dataVolumes" : null, "startOnCreate" : true, "domainName" : null, "volumeDriver" : null, "cpuSet" : null, "restartPolicy" : null, "networkContainerId" : null, "user" : null, "dataVolumeMounts" : null, "nativeContainer" : false, "deploymentUnitUuid" : null, "hostname" : null, "tty" : false, "capDrop" : null, "name" : "atlas-mosquitto_mosquitto_2", "removed" : null, "primaryIpAddress" : null, "cpuShares" : null, "imageUuid" : "docker:distribution.dummy.info/atlas/mosquitto:0.0.8", "createdTS" : 1481073304000, "systemContainer" : null, "environment" : { "AUTH_SERVICE_ALIAS" : "auth.atlas-auth.rancher.internal", "AUTH_SERVICE_PORT" : "8100" }, "stdinOpen" : false, "accountId" : "1a29", "registryCredentialId" : null, "description" : "foo", "command" : null, "version" : "0", "build" : null, "healthCheck" : null, "expose" : null, "entryPoint" : null, "publishAllPorts" : false, "memorySwap" : null, "type" : "container", "dataVolumesFrom" : null, "actions" : { "error" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/?action=error", "remove" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/?action=remove", "stop" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/?action=stop", "setlabels" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/?action=setlabels", "start" : "https://rancher-ha.dummy.info/v1/projects/1a29/containers/1i9139/?action=start" }, "blkioDeviceOptions" : null, "externalId" : null, "healthState" : null, "kind" : "container", "ports" : null, "extraHosts" : null, "devices" : null, "networkMode" : "managed", "capAdd" : null, "dns" : null, "firstRunning" : null, "transitioning" : "yes" }，我希望容器在该服务中，但事实并非如此。容器已创建，但最终会创建为独立容器。我想要的是这个创建的容器是DNS可寻址的，并且可以在指定的堆栈和服务下的牧场主UI中访问。

Answer 1

好的问题解决了。要将容器添加到特定堆栈/服务，您必须首先修改要将容器添加到的服务。该服务需要包含标记io.rancher.service.selector.container

例如，假设我想将REST API创建的容器添加到我的mosquitto服务中。 mosquitto服务的docker-compose文件可能如下所示：

moquitto:
  image: distribution.foofee.com/atlas/mosquitto:0.0.23
  environment:
    AUTH_SERVICE_PORT: 8100
    AUTH_SERVICE_ALIAS: auth.atlas-auth.rancher.internal
  labels:
    io.rancher.service.selector.container: stackz=mos-test

仔细看看io.rancher.service.selector.container: stackz=mos-test。这告诉牧场主将所有带有标签stackz=mos-test的容器添加到mosquitto服务。

现在我们已经指定了这个，我们可以使用类似这样的请求通过rancher REST API创建我们的容器：

curl -u "${RANCHER_ACCESS_KEY}:${RANCHER_SECRET_KEY}" \
-X POST \
-H 'Accept: application/json' \
-H 'Content-Type: application/json' \
-d '{"count":1, "imageUuid":"docker:distribution.foo.com/atlas/mosquitto:0.0.23", "name":"foozy", "startOnCreate":true, "command":[], "publishAllPorts":false, "privileged":false, "stdinOpen":false, "tty":false, "restartPolicy":null, "readOnly":false, "build":null, "networkMode":"managed", "labels": {"stackz": "mos-test", "io.rancher.container.network": "true", "io.rancher.container.dns": "true"}}' \
'https://rancher.us-west-2.foo.com/v1/projects/1a5/containers'

漂亮的印刷体：

{
  "count": 1,
  "imageUuid": "docker:distribution.foo.com\/atlas\/mosquitto:0.0.23",
  "name": "foozy",
  "startOnCreate": true,
  "command": [

  ],
  "publishAllPorts": false,
  "privileged": false,
  "stdinOpen": false,
  "tty": false,
  "restartPolicy": null,
  "readOnly": false,
  "build": null,
  "networkMode": "managed",
  "labels": {
    "stackz": "mos-test",
    "io.rancher.container.network": "true",
    "io.rancher.container.dns": "true"
  }
}

因为我们在此请求中添加了标签"stackz": "mos-test"，所以这会将容器添加到mosquitto，因为此标签与我们在mosquitto服务上设置的io.rancher.service.selector.container标签匹配。

现在，容器也可以在牧场环境中的任何位置直接进行DNS寻址。根据上述请求创建的容器名为foozy。它的DNS可寻址为foozy.rancher.internal

如何通过rancher REST api将容器添加到堆栈服务中

1 个答案: