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Version: 5.x

Configure Log Streaming

By default, DevSpace streams the logs of all containers that use one of the images defined in the images section of the devspace.yaml.

To control which container logs should be streamed, you can configure the dev.logs section in the devspace.yaml.

images:
  frontend:
    image: gcr.io/my-org/appfrontend
  backend:
    image: john/appbackend
  database:
    image: john/database
dev:
  logs:
    showLast: 200
    # To display the sync log as well
    sync: true
    selectors:
    - imageSelector: john/appbackend
    - imageSelector: john/database

DevSpace will continously check what pods match the given selectors and start or end log streaming accordingly.

Configuration​

selectors​

DevSpaces allows log streaming from pods and containers based on label or image selectors. You can configure them under the option selectors.

dev:
  logs:
    selectors:
    # Selects all pods with the given label selectors and streams the logs to the console
    - labelSelector:
        abc: def
      containerName: optional
      namespace: optional
    - labelSelector:
        other: selector   
    - imageSelector: nginx
      namespace: optional

sync​

The sync option expects an boolean which defines if the sync log should be merged with the pod and container logs. By default this option is true.

showLast​

The showLast option expects an integer which defines how many log lines DevSpace will print for each container before starting to stream the container's logs in real-time.

Default Value For showLast​

showLast: 50

Example: Show Last 200 Log Lines​

images:
  frontend:
    image: john/appfrontend
  backend:
    image: john/appbackend
deployments:
- name: app-frontend
  helm:
    componentChart: true
    values:
      containers:
      - image: john/appfrontend
- name: app-backend
  helm:
    componentChart: true
    values:
      containers:
      - image: john/appbackend
      - image: john/appbackend-sidecar
dev:
  logs:
    showLast: 200

Explanation:

  • The above example defines 2 images and 2 deployments.
  • DevSpace would stream the logs of:
    • The container of deployment app-frontend because the image is john/appfrontend = images.frontend.image
    • Only the first container of deployment app-backend because the image is john/appbackend = images.backend.image
  • For each of the two containers, DevSpace would print the last 200 log lines before starting to stream the logs

disabled​

The disabled option expects a boolean which defines if DevSpace should start multi-container log streaming when running devspace dev or if DevSpace should just start other services (e.g. port-forwarding and sync) without starting the log stream.

Default Value For disabled​

disabled: false

Example: Disable Log Streaming​

images:
  backend:
    image: john/appbackend
deployments:
- name: app-backend
  helm:
    componentChart: true
    values:
      containers:
      - image: john/appbackend
      - image: john/appbackend-sidecar
dev:
  logs:
    disabled: true