Output as many yaml docs

[kferrone]

Currently kompose will add all the resources it creates to a kubernetes List kind. Is it possible to output to multiple yaml docs instead of a List?

This means instead of

apiVersion: v1
kind: List
metadata: {}
items:
- kind: Deployment
- kind: Service

Each resource in the items list would instead be separated by a yaml doc separator:

kind: Deployment
---
kind: Service

[aiyijing]

@kferrone

How do you add the flag of command ?
You can view the description of the "--out" flag ,It require a fileName.
The kompose create a single file or multiple files depends on whether
the fileName you give is a directory or a file
For example：

kompose convert -f docker-compose.yaml -o deploy/

It will create the deploy directory If not exist and create resources file by resource type

[kferrone]

I'm specifically trying to output to stdout like this:

kompose convert --stdout

With the -o, the output looks right in their own files. However, I really want the output in the terminal when using --stdout to be multi yaml docs using the --- separator.

Here is the terminal output:

apiVersion: v1
kind: List
metadata: {}
items:
  - apiVersion: apps/v1
    kind: Deployment
    metadata:
      annotations:
        kompose.cmd: kompose convert --stdout
        kompose.version: 1.22.0 (955b78124)
      creationTimestamp: null
      labels:
        io.kompose.service: kustom
      name: kustom
    spec:
      replicas: 1
      selector:
        matchLabels:
          io.kompose.service: kustom
      strategy:
        type: Recreate
      template:
        metadata:
          annotations:
            kompose.cmd: kompose convert --stdout
            kompose.version: 1.22.0 (955b78124)
          creationTimestamp: null
          labels:
            io.kompose.service: kustom
        spec:
          containers:
              image: nginx
              name: kustom
              resources: {}
              volumeMounts:
                - mountPath: /app
                  name: kustom-claim0
                - mountPath: /foo
                  name: kustom-claim1
          restartPolicy: Always
          volumes:
            - name: kustom-claim0
              persistentVolumeClaim:
                claimName: kustom-claim0
            - name: kustom-claim1
              persistentVolumeClaim:
                claimName: kustom-claim1
    status: {}
  - apiVersion: v1
    kind: PersistentVolumeClaim
    metadata:
      creationTimestamp: null
      labels:
        io.kompose.service: kustom-claim0
      name: kustom-claim0
    spec:
      accessModes:
        - ReadWriteOnce
      resources:
        requests:
          storage: 100Mi
    status: {}
  - apiVersion: v1
    kind: PersistentVolumeClaim
    metadata:
      creationTimestamp: null
      labels:
        io.kompose.service: kustom-claim1
      name: kustom-claim1
    spec:
      accessModes:
        - ReadWriteOnce
      resources:
        requests:
          storage: 100Mi
    status: {}

[aiyijing]

/assign hangyan

[aiyijing]

@hangyan
You can refer to similar flag of kubectl "-o yaml", So I don't think kompose need to support it

[kferrone]

Never mind, I found something which works. The yq bash command does the trick

kompose convert --stdout | yq e '.items[] | splitDoc' -

[scheung38]

Hi @kferrone instead of generating as stdout, how do we output a list of files, says service-django.yaml, deploy-django.yaml etc. This blog just use kompose convert and it provides separate files? Or is this no longer the default but defaulting to a single large manifest file which is harder to follow.

https://loft.sh/blog/docker-compose-to-kubernetes-step-by-step-migration/