Previously, when `podman run` encountered a volume mount without
separate source and destination (e.g. `-v /run`) we would assume
that both were the same - a bind mount of `/run` on the host to
`/run` in the container. However, this does not match Docker's
behavior - in Docker, this makes an anonymous named volume that
will be mounted at `/run`.
We already have (more limited) support for these anonymous
volumes in the form of image volumes. Extend this support to
allow it to be used with user-created volumes coming in from the
`-v` flag.
This change also affects how named volumes created by the
container but given names are treated by `podman run --rm` and
`podman rm -v`. Previously, they would be removed with the
container in these cases, but this did not match Docker's
behaviour. Docker only removed anonymous volumes. With this patch
we move to that model as well; `podman run -v testvol:/test` will
not have `testvol` survive the container being removed by `podman
rm -v`.
The sum total of these changes let us turn on volume removal in
`--rm` by default.
Fixes: #4276
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
it enforces the systemd mode also when the command name doesn't match
/usr/sbin/init or systemd.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
"init" is a quite common name for the command executed in a container
image and Podman ends up using the systemd mode also when not
required.
Be stricter on enabling the systemd mode and not enable it
automatically when the basename is "init" but expect the full path
"/usr/sbin/init".
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
CRI-O defaults to 1024 for the maximum pids in a container. Podman
should have a similar limit. Once we have a containers.conf, we can
set the limit in this file, and have it easily customizable.
Currently the documentation says that -1 sets pids-limit=max, but -1 fails.
This patch allows -1, but also indicates that 0 also sets the max pids limit.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Currently if a user specifies a --mount option, their is no way to tell SELinux
to relabel the mount point.
This patch addes the relabel=shared and relabel=private options.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This is mostly used with Systemd, which really wants to manage
CGroups itself when managing containers via unit file.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Use a consistent format for description of the <size><unit> flags.
Also, avoid backticks for /dev/shm, as that's interpreted as the format
by the flag parsing lib.
Signed-off-by: Marco Vedovati <mvedovati@suse.com>
The files under docs/links reference another man page, e.g.
`man podman-container-list` displays `podman-ps(1)`. This adds
the alias to the in the displayed page's SYNOPSIS section.
Signed-off-by: Ryan Whalen <rj.whalen@gmail.com>
Docker has unlimited tmpfs size where Podman had it set to 64mb. Should be standard between the two.
Remove noexec default
Signed-off-by: Ashley Cui <ashleycui16@gmail.com>
Udica is adding new features to allow users to define container process
and file types. This would allow us to setup trusted communications channels
between multiple security domains. ContainerA -> ContainerB -> ContainerC
Add tests to make sure users can change file types
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Requirement from https://github.com/containers/libpod/issues/3575#issuecomment-512238393
Added --pull for podman create and pull to match the newly added flag in docker CLI.
`missing`: default value, podman will pull the image if it does not exist in the local.
`always`: podman will always pull the image.
`never`: podman will never pull the image.
Signed-off-by: Qi Wang <qiwan@redhat.com>
close#3648
podman create and podman run do not set --env variable if the environment is not present with a value
Signed-off-by: Qi Wang <qiwan@redhat.com>
Close#3553
This PR makes --dns, --dns-option, --dns-search, and --network not set to host flag mutually exclusive for podman build and create. Returns conflict error if both flags are set.
Signed-off-by: Qi Wang <qiwan@redhat.com>
allow a container to run in a new cgroup namespace.
When running in a new cgroup namespace, the current cgroup appears to
be the root, so that there is no way for the container to access
cgroups outside of its own subtree.
By default it uses --cgroup=host to keep the previous behavior.
To create a new namespace, --cgroup=private must be provided.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Docker CLI calls the healthcheck flags "--health-*", instead of
"--healthcheck-*".
Introduce the former, in order to keep compatibility, and alias
the later, in order to avoid breaking current usage.
Change "--healthcheck-*" to "--health-*" in the docs and tests.
Signed-off-by: Hunor Csomortáni <csomh@redhat.com>
Fix Docker CLI compatibility issue: the "--healthcheck-command" option
value should not be split but instead be passed as single string to
"CMD-SHELL", i.e. "/bin/sh -c <opt>".
On the other hand implement the same extension as is already available
for "--entrypoint", i.e. allow the option value to be a JSON array of
strings. This will make life easier for tools like podman-compose.
Updated "--healthcheck-command" option values in tests accordingly.
Continuation of #3455 & #3507
Signed-off-by: Stefan Becker <chemobejk@gmail.com>
This flag passes the host environment into the container. The basic idea is to
leak all environment variables from the host into the container.
Environment variables from the image, and passed in via --env and --env-file
will override the host environment.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
add a simple way to copy ulimit values from the host.
if --ulimit host is used then the current ulimits in place are copied
to the container.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
it creates a namespace where the current UID:GID on the host is mapped
to the same UID:GID in the container.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Mark hidden all references to signature-policy
Default all uses of --authfile
Add --authfile support to podman run and podman create.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
