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| author | Daniel J Walsh <dwalsh@redhat.com> | 2021-04-26 06:06:30 -0400 |
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| committer | Daniel J Walsh <dwalsh@redhat.com> | 2021-04-27 11:57:19 -0400 |
| commit | 63fd3a3fcaf320a3eede8878aba9b5636b8db6c8 (patch) | |
| tree | 87c4befb97a9c8905aa9cdbcc244917e28c271a6 /docs/source/markdown/podman-run.1.md | |
| parent | abda7961d63b1d240f72022757e6be1673e43897 (diff) | |
| download | podman-63fd3a3fcaf320a3eede8878aba9b5636b8db6c8.tar.gz podman-63fd3a3fcaf320a3eede8878aba9b5636b8db6c8.tar.bz2 podman-63fd3a3fcaf320a3eede8878aba9b5636b8db6c8.zip | |
Add more documentation on conmon
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'docs/source/markdown/podman-run.1.md')
| -rw-r--r-- | docs/source/markdown/podman-run.1.md | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/docs/source/markdown/podman-run.1.md b/docs/source/markdown/podman-run.1.md index 2e6d97a05..74bbf8809 100644 --- a/docs/source/markdown/podman-run.1.md +++ b/docs/source/markdown/podman-run.1.md @@ -1763,6 +1763,20 @@ $ podman run --env ENV*****=b alpine printenv ENV***** b ``` +## CONMON + +When Podman starts a container it actually executes the conmon program, which +then executes the OCI Runtime. Conmon is the container monitor. It is a small +program whose job is to watch the primary process of the container, and if the +container dies, save the exit code. It also holds open the tty of the +container, so that it can be attached to later. This is what allows Podman to +run in detached mode (backgrounded), so Podman can exit but conmon continues to +run. Each container has their own instance of conmon. Conmon waits for the +container to exit, gathers and saves the exit code, and then launches a Podman +process to complete the container cleanup, by shutting down the network and +storage. For more information on conmon, please reference the conmon(8) man +page. + ## FILES **/etc/subuid** @@ -1773,7 +1787,7 @@ NOTE: Use the environment variable `TMPDIR` to change the temporary storage loca ## SEE ALSO **podman**(1), **podman-save**(1), **podman-ps**(1), **podman-attach**(1), **podman-pod-create**(1), **podman-port**(1), **podman-start**(1), **podman-kill**(1), **podman-stop**(1), -**podman-generate-systemd**(1) **podman-rm**(1), **subgid**(5), **subuid**(5), **containers.conf**(5), **systemd.unit**(5), **setsebool**(8), **slirp4netns**(1), **fuse-overlayfs**(1), **proc**(5)**. +**podman-generate-systemd**(1) **podman-rm**(1), **subgid**(5), **subuid**(5), **containers.conf**(5), **systemd.unit**(5), **setsebool**(8), **slirp4netns**(1), **fuse-overlayfs**(1), **proc**(5), **conmon**(8). ## HISTORY September 2018, updated by Kunal Kushwaha `<kushwaha_kunal_v7@lab.ntt.co.jp>` |