When you run a container and mount a volume from the host, all you see in the container is what is on the host – the volume mount points at the host directory, so if there was anything in the directory in the image it gets bypassed. With an image from this Dockerfile: FROM ubuntu WORKDIR /vol … Read more
The Filesystem Hierarchy Standard has a standard definition for /etc/os-release, which should be available on most distributions: The /etc/os-release and /usr/lib/os-release files contain operating system identification data. The basic file format of os-release is a newline-separated list of environment-like shell-compatible variable assignments. It is possible to source the configuration from shell scripts. This means you … Read more
This can be done like this, add build in docker-compose.yml and run the build from ABOVE directory: version: ‘3.8’ services: your_service: build: # “context” and “dockerfile” fields have to be under “build” context: . dockerfile: <Below_Directory>/Dockerfile
Here is a way to restore from a file located on the host machine: docker exec -i container_name pg_restore -U postgres_user -v -d database_name < /dir_backup_outside_container/file_name.tar
Simply remove the MYSQL_USER and it will work fine because the root user gets created automatically. PS. This seems to be a problem with a newer docker version because this used to work before and not throw an error.
the key word ARG has a different scope before and after the FROM instruction Try using ARG twice in your Dockerfile, and/or you can try the ENV variables ARG LANDING_PAGE_DOMAIN FROM nginx:alpine COPY nginx.conf /etc/nginx/nginx.conf COPY production/* /etc/nginx/conf.d/ ARG LANDING_PAGE_DOMAIN ENV LANDING_PAGE_DOMAIN=${LANDING_PAGE_DOMAIN} RUN sed -i s/{LANDING_PAGE_DOMAIN}/${LANDING_PAGE_DOMAIN}/g /etc/nginx/conf.d/landing.conf EXPOSE 80 443
This answer has an explanation for the difference between “assume yes” and a non-interactive mode. I also found an example of a Dockerfile that installs jackd2 here, and it’s setting DEBIAN_FRONTEND to ‘noninteractive’ before installing jackd2.
You should actually ALWAYS deploy the exploded .war. There are two elements of speed to think about here: How fast is it to be able to push up your image to a container repository? and How quickly can a new instance of my container start serving requests? (important in an elastic-scaling environment) The answer to … Read more
As stated on the edit on my question the problem was that CMD from nginx:1.11 was only starting the nginx process. A work around is to place the following command on my Dockerfile CMD service cron start && nginx -g ‘daemon off;’ This will start nginx as nginx:1.11 starts it and well as start the … Read more