Aha! I fixed it. @Ijaz was totally correct – the RabbitMQ service takes a while to start, and my worker tries to connect before it’s running. I tried using a delay, but this failed when the RabbitMQ took longer than usual. This is also indicative of a larger architectural problem – what happens if the … Read more
While not a very common use case.. you can indeed connect from your container to your host. From https://docs.docker.com/docker-for-mac/networking/ I want to connect from a container to a service on the host The host has a changing IP address (or none if you have no network access). From 18.03 onwards our recommendation is to connect … Read more
I also encountered the same error as you,My problem is that docker does not start. check docker status systemctl status docker systemctl start docker docker-compose up try again systemctl enable docker to start on boot
That would override the default CMD [ “redis-server” ]: you are trying to run redis-cli on a container where the redis-server was never executed. As mentioned here, you can also test with: docker exec -it myredis redis-cli From docker-compose, as mentioned in this docker/compose issue 2123: rcli: image: redis:latest links: – redis command: > sh … Read more
I encounter the same problem when installing docker-ce version 18. I won’t use aptitude to install the old version because nvidia-docker only supports Docker version above 18! The solution is quite easy: sudo add-apt-repository ppa:ubuntu-sdk-team/ppa sudo apt-get update Then you can use command sudo apt-get install docker-ce to solve the libseccomp2 version conflict problem. Reference: … Read more
I think the easier way is to remove all cache and containers and pull them again. docker system prune –all docker volume prune docker-compose up I think this will solve the error.
In my experience Docker serves two purposes: To be able to develop code in a containerized environment. This is very useful as I am now able to get new developers on my team ready to work in about 5 mins Previously, this could have taken anywhere from an hour to several hours for misc issues, … Read more
You can use ENTRYPOINT or CMD in your Dockerfile to execute a command when the container starts. The difference between them is that ENTRYPOINT is executed any time the container is started, while CMD might be replaced with an command line option. Assuming the command you want to execute is X docker run my-image Y … Read more
As documentation said volumes if you are in version 3 you can use The top-level volumes to define a named volume as db-data ee code below and you can reference it in every services something like this: version: “3” services: web: nginx:alpine ports: – “80:80” postgres: image: postgres:9.4 volumes: – db-data:/var/lib/db backup: image: postgres:9.4 volumes: … Read more