Update a service
Use Duplo to update a service's container from Gitlab CI/CD

Update the docker image for a service

The goal of this section is to show how you can update the docker image for a service, after you have built that image.

Example Workflow

This example makes some assumptions:
  • Your workflow already has a build job - we created one in the previous section
variables:
DOCKERHUB_USERNAME: duplocloud # CHANGE ME!
DOCKERHUB_REPO: mydockerhubid/myrepo # CHANGE ME!
DUPLO_HOST: https://mysystem.duplocloud.net # CHANGE ME!
DUPLO_SERVICE_NAME: myservice # CHANGE ME!
TENANT_NAME: mytenant
docker-build:
# Use the official docker image.
image: docker:latest
stage: build
services:
- docker:dind
before_script:
- docker login -u "$DOCKERHUB_USERNAME" -p "$DOCKERHUB_PASSWORD"
script:
- |
tag=":$CI_COMMIT_SHA"
echo "Running on branch '$CI_COMMIT_BRANCH': tag = $tag"
- docker build --pull -t "$DOCKERHUB_REPO${tag}" .
- docker push "$DOCKERHUB_REPO${tag}"
# Run this job in a branch where a Dockerfile exists
rules:
- if: $CI_COMMIT_BRANCH
exists:
- Dockerfile
docker-deploy:
# Use the official docker image.
image: docker:latest
stage: deploy
services:
- docker:dind
before_script:
- apk add --update curl jq && rm -rf /var/cache/apk/*
script:
- |
tag=":$CI_COMMIT_SHA"
wget https://raw.githubusercontent.com/duplocloud/demo-npm-service/master/.circleci/duplo_utils.sh
chmod +x duplo_utils.sh
source duplo_utils.sh
update_service_api $(get_tenant_id $TENANT_NAME) "$DOCKERHUB_REPO${tag}"
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Update the docker image for a service
Example Workflow