i am trying to migrate a docrized project to kubernetes, i have used Kompose to convert the project
kompose --file docker-compose.yml convert,
when i run kompose up after migrating the files i get this error
$ kompose up WARN Unsupported env_file key - ignoring
FATA Error while deploying application: k.Transform failed: image key required within build parameters in order to build and push service 'drkiq'
.env file:
SECRET_TOKEN=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx WORKER_PROCESSES=1 LISTEN_ON=0.0.0.0:8000 DATABASE_URL=postgresql://drkiq:yourpassword@postgres:5432/drkiq?encoding=utf8&pool=5&timeout=5000 CACHE_URL=redis://redis:6379/0 JOB_WORKER_URL=redis://redis:6379/0
Dockerized project Link here!
any idea how to convert the .env file to a format that can be used with kubernetes kompose
Docker-compose file:
postgres:
image: postgres:9.4.5
environment:
POSTGRES_USER: drkiq
POSTGRES_PASSWORD: yourpassword
ports:
- '5432:5432'
volumes:
- drkiq-postgres:/var/lib/postgresql/data
redis:
image: redis:3.0.5
ports:
- '6379:6379'
volumes:
- drkiq-redis:/var/lib/redis/data
drkiq:
build: .
links:
- postgres
- redis
volumes:
- .:/drkiq
ports:
- '8000:8000'
env_file:
- .drkiq.env
sidekiq:
build: .
command: bundle exec sidekiq -C config/sidekiq.yml
links:
- postgres
- redis
volumes:
- .:/drkiq
env_file:
- .drkiq.env
Kubernetes kompose supports env_file conversion from Docker Compose 3.x version as it's described in Conversion matrix.
In Kubernetes you can use ConfigMap to store your environment variables from env_file. For SECRET_TOKEN variable, you can use Secrets to hold your private and sensitive data.
You can also check other tools for conversion purpose like compose2kube or k8s-env-gen.
According to the attached Docker-composer file and the error during the conversion process, I can assume that you missed image key value for drkiq and sidekiq services:
Update: docker-compose.yml file
version: '2'
services:
postgres:
image: postgres:9.4.5
environment:
POSTGRES_USER: drkiq
POSTGRES_PASSWORD: yourpassword
ports:
- '5432:5432'
volumes:
- drkiq-postgres:/var/lib/postgresql/data
redis:
image: redis:3.0.5
ports:
- '6379:6379'
volumes:
- drkiq-redis:/var/lib/redis/data
drkiq:
build: .
image: drkiq:tag
links:
- postgres
- redis
volumes:
- .:/drkiq
ports:
- '8000:8000'
env_file:
- .drkiq.env
sidekiq:
build: .
command: bundle exec sidekiq -C config/sidekiq.yml
image: sidekiq:tag
links:
- postgres
- redis
volumes:
- .:/drkiq
env_file:
- .drkiq.env