angelscripts-stem-k8s

organic-stem-skeleton v3 based k8s related utilities.

• mngmt of k8s resource manifests with dna templating features
• automatic use of repoRoot/.kubeconfig
• automatic app=cellName labeling for k8s logs

setup

cd cells/myCell
npm i angelscripts-stem-k8s --save-dev

usage

apply/delete/get/describe k8s resources

k8s apply, k8s delete and k8s get commands are enchanced version of their respective version at kubectl with the following:

• if there is repoRoot/.kubeconfig, it is used
• passed argument is cell's dna branch dot notated path which represent a k8s manifest for resource with DNA support for templating.

$ cd cells/myCell
$ edit ./dna/k8s/deployment.yaml
$ edit package.json
$ npx angel k8s apply k8s.deployment

deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: "{$npm_package_name}-deployment"
  labels:
    app: "{$npm_package_name}"
spec:
  replicas: 1
  selector:
    matchLabels:
      app: "{$npm_package_name}"
  template:
    metadata:
      labels:
        app: "{$npm_package_name}"
    spec:
      containers:
      - name: "{$npm_package_name}"
        image: "@{cells.cell89.registry}/{$npm_package_name}-{$npm_package_version}"
        ports:
        - containerPort: "@cells.cell89.port"
        resources:
          limits:
            cpu: "1"
            memory: 1024Mi
          requests:
            cpu: "50m"
            memory: 256Mi
        env:
        - name: CELL_MODE
          value: "_production+_secrets"

multiple k8s manifests at the same time

DNA branch dot notated paths separated by comma indicate multple k8s manifests to be managed.

$ cd cells/myCell
$ npx angel k8s apply k8s.deployment,k8s.service

print DNA as k8s resource manifest

To see how DNA branches are rendered as manifests use k8s yaml command and provide a dot notated DNA branch path.

$ cd cells/myCell
$ npx angel k8s yaml k8s.deployment,k8s.service