[英]Using Ansible json_query to Check Output of Json Kubectl command
I am trying to use Ansible to put a pause in my playbook, since I am installing an operator from the Operator Hub and don't want to continue, until I know the CRDs I require in the following steps are installed.我正在尝试使用 Ansible 暂停我的剧本,因为我正在从 Operator Hub 安装操作员并且不想继续,直到我知道我在以下步骤中需要的 CRD 已安装。 I have the following task but can't get it working yet.
我有以下任务,但还不能让它工作。
- name: Wait for CRDs to be available
command: kubectl get sub my-operator -n openshift-operators -o json
register: cmd
retries: 10
delay: 5
until: cmd.stdout | json_query('status.conditions[0].status') == true
Sample JSON样品 JSON
{
"apiVersion": "operators.coreos.com/v1alpha1",
"kind": "Subscription",
"metadata": {
"creationTimestamp": "2021-12-13T04:23:58Z",
"generation": 1,
"labels": {
"operators.coreos.com/argocd-operator.openshift-operators": ""
},
"name": "argocd-operator",
"namespace": "openshift-operators",
"resourceVersion": "58122",
"uid": "6eaad3c1-8329-4d00-90b8-1ab635b3b370"
},
"spec": {
"channel": "alpha",
"config": {
"env": [
{
"name": "ARGOCD_CLUSTER_CONFIG_NAMESPACES",
"value": "argocd"
}
]
},
"installPlanApproval": "Automatic",
"name": "argocd-operator",
"source": "community-operators",
"sourceNamespace": "openshift-marketplace",
"startingCSV": "argocd-operator.v0.1.0"
},
"status": {
"catalogHealth": [
{
"catalogSourceRef": {
"apiVersion": "operators.coreos.com/v1alpha1",
"kind": "CatalogSource",
"name": "operatorhubio-catalog",
"namespace": "olm",
"resourceVersion": "57924",
"uid": "95871859-edbc-45ad-885c-3edaad2a1df6"
},
"healthy": true,
"lastUpdated": "2021-12-13T04:23:59Z"
}
],
"conditions": [
{
"lastTransitionTime": "2021-12-13T04:23:59Z",
"message": "targeted catalogsource openshift-marketplace/community-operators missing",
"reason": "UnhealthyCatalogSourceFound",
"status": "True",
"type": "CatalogSourcesUnhealthy"
}
],
"lastUpdated": "2021-12-13T04:23:59Z"
}
}
There is a small detail that is tripping up the condition.有一个小细节会导致这种情况。 In the JSON output, the status is a string
"True"
and not a boolean which we are comparing.在 JSON output 中,状态是字符串
"True"
,而不是我们正在比较的 boolean。
Note: "status": "True"
注意:
"status": "True"
Changing the condition to match the string True
...更改条件以匹配字符串
True
...
until: cmd.stdout | json_query('status.conditions[0].status') == "True"
Or, applying the | bool
或者,应用
| bool
| bool
filter... | bool
过滤器...
until: stdout | json_query('status.conditions[0].status') | bool
The complete task:完成任务:
- name: Wait for CRDs to be available
command: kubectl get sub my-operator -n openshift-operators -o json
register: cmd
retries: 10
delay: 5
until: cmd.stdout | json_query('status.conditions[0].status') | bool
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