docker-compose

问题 Is there a way to force docker compose to assume environment variables from the underlying machine? Background: I decided to play around with Docker in my ASP.NET Core Web Application, so I used the Add Docker Support option in Visual Studio, which created a .dcproj (Docker Compose project). Prior to that, I was reading some configs from Environment Variables on the current machine (either my dev machine or a server). I realized when I'm debugging with the docker compose project, I'm not able

问题 My Docker ran into an error state, where I cannot use it anymore. output of docker system info : Containers: 14 Running: 2 Paused: 0 Stopped: 12 Images: 61 Server Version: 18.03.1-ce Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: error NodeID:

问题 I have a Ruby on Rails app I'm trying to containerize so that I can deploy it with Docker: version: '3.4' services: db: image: postgres web: container_name: my_rails_app build: . ports: - "3000:3000" depends_on: - db As part of the existing build process for this application, there currently exists a script which starts up a test version of the application with a bunch of sample data and takes multiple screenshots of various features of the application to be used in help files. This script is

问题 I am new to docker. I have gone through few tutorial to create docker compose file to create 3 Jetty, 1 NGINX and 1 MySQL. NGINX is acting as LB with round robin mechanism.It is working good as expected. If I scale up my jetty instance ( by docker-compose scale jetty-one=2), container is created . But it is not coming under NGINX LB. I hope, I have hard coded in NGINX's configuration file upstream. please guide me and provide solution for adding Jetty instance under LB at run time without

问题 I have a docker-compose.yml file with differents variables version: "2" services: data: image: "${registryUrl}/data:${image_version}" In my shell, I export registryUrl & image_version export registryUrl=zhcjie.distribution.ata.com:8652 export image_version=1.0-SNAPSHOT docker-compose up that's work in my local (I'm using boot2Docker) but it doesn't work in Jenkins. I have a wrong message. The registryUrl variable is not set. Defaulting to a blank string. The image_version variable is not set.

问题 I have an application with this structure. /path/releases /path/releases/01012016 /path/releases/16012016 /path/releases/etc.. And /path/dev (symlink to some version) /path/stag (symlink to some version) /path/stable (symlink to some version) My docker-compose.yml looks like this: nginx: ... volumes_from: - data php: ... volumes_from: - data data: volumes: - /path/stable:/var/www I known that Docker resolves symlinks. I have thought before deploy I just recreate data container and it's ok.

问题 I know you can share a directory that exists on the host with a container using the VOLUMES directive, but I'd like to do the opposite--share the files that exist in the container with the host, provided that nothing exists in that directory on the host. The use case for this is that we have contractors, and we'd like to provide them with a docker container that contains all the code and infrastructure they need to work with, but that would allow them to alter that code by running PyCharm or

问题 The error I try to launch a logspout container and set the log format (an ENV variable) via a docker-compose file. Not too difficult, and if I launch it with docker-compose up , everything works fine. But when I try to launch it with docker swarm init and docker stack deploy -c docker-compose.yml mystack , I get an error: Error response from daemon: rpc error: code = InvalidArgument desc = expanding env failed: expanding env "RAW_FORMAT={ \"container\" : \"{{ .Container.Name }}\", \"labels\":

问题 I am learning Docker and trying to understand volumes . Looking at this example of wordpress compose and its dockerfile I don't get which command is responsible for populating wordpress files into /var/www/html . I do see that there is VOLUME /var/www/html command in the dockerfile to create a mount point. There is command to download wordpress files and put in /usr/src/wordpress directory. But what I don't get is how does files get into /var/www/html ? Is it just that mounting to this

问题 I have a docker-compose file with services for python , nginx , postgres and pgadmin : services: postgres: image: postgres:9.6 env_file: .env volumes: - postgres_data:/var/lib/postgresql/data ports: - "5431:5431" pgadmin: image: dpage/pgadmin4 links: - postgres depends_on: - postgres environment: PGADMIN_DEFAULT_EMAIL: admin@admin.com PGADMIN_DEFAULT_PASSWORD: pwdpwd volumes: - pgadmin:/root/.pgadmin ports: - "5050:80" backend: build: context: ./foobar # This refs a Dockerfile with Python and