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InstallationDate: Installed on (146 days ago) If you are using docker machine, run the script shipped with the product that sets up the environment. ProcVersionSign ature: Ubuntu 3.13.0- 32.57-generic 3.13.11.4 You can define DOCKERHOST, DOCKERTLSHOSTNAME, DOCKERAPIVERSION, DOCKERCERTPATH, DOCKERSSLVERSION, DOCKERTLS, DOCKERTLSVERIFY and DOCKERTIMEOUT. The inspect sub-command provides a JSON output, I'll get into that in a moment. docker inspect object options docker objecttype inspect object options The second method is the one you should be using always. Hopefully all this stuff (and a lot more) showed up in the data gathered by the ubuntu-bug command. Using Docker inspect command There are two ways you can use the inspect sub-command.
DOCKER INSPECT FORMAT STRING CODE
The code I'm using to manage these docker instances is here: hg.linux- ha.org/ assimilation/ file/tip/ cma/systemtests /docker. So, it's not an empty string being treated as or converted to a zero. The string in at the end of the line is the contents of what I read from the docker.io inspect command listed above. State.Pid is currently zero for instance DockerSystem. Here's the output from my code when it encounters this condition: Supports lazy-pulling (Stargz) Supports encrypted images (ocicrypt) nerdctl is a non-core sub-project of containerd. Supports Docker Compose ( nerdctl compose up) Supports rootless mode. nerdctl is a Docker-compatible CLI for contai nerd. Options: -f, -format string Format the output using the given Go template. where mysecret will be the name of the Docker secret. In your terminal: printf 'some string that is your secret value' docker secret create mysecret. Display detailed information on one or more images. You can manually create a secret from the command line before you run your docker-compose.yml file. Usage: docker image inspect OPTIONS IMAGE IMAGE. Syntax: easywhatis docker image inspect -help. Since it takes a long time to spawn 200 containers and even longer to shut them down (like 5 seconds each), this *really* puts a kink in my testing. nerdctl: Docker-compatible CLI for containerd. Description: Display detailed information of one or more images. I retry every second for 100 seconds just in case it's a transient error. This almost always works, but occasionally it doesn't - and returns a line containing only "0". It seems to happen more often when I spawn a lot of them (like 200) as fast as I can.ĭocker.io 'inspect' '-format' '' docker- instance- name for each docker instance as I spawn it so I can control what is going on in those containers.Įvery so often (that is every few thousand containers), I get one which the State.Pid is "0" - and remains zero. When you type it in you probably, invariably, stretch out your terminal to fit all the super important. docker ps is a command that absolutely every Docker user uses. In the process, I gather the pid, hostname, etc. Its been awhile since I did a quick Docker tip, so I figured I should go ahead and share one that I know many people will get use out of. I'm doing a bunch of testing with dozens to hundreds of Docker containers.