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authorValentin Rothberg <vrothberg@redhat.com>2022-05-05 13:34:01 +0200
committerValentin Rothberg <vrothberg@redhat.com>2022-05-12 10:51:13 +0200
commit840c120c21124de921a7f57435cf0d0497103736 (patch)
tree18b6d18b88ff178474487bd59e0d4275c1b27ea2 /cmd/podman/play
parentecf0177a01535b273a62e12577d7caf062a91117 (diff)
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play kube: service container
Add the notion of a "service container" to play kube. A service container is started before the pods in play kube and is (reverse) linked to them. The service container is stopped/removed *after* all pods it is associated with are stopped/removed. In other words, a service container tracks the entire life cycle of a service started via `podman play kube`. This is required to enable `play kube` in a systemd unit file. The service container is only used when the `--service-container` flag is set on the CLI. This flag has been marked as hidden as it is not meant to be used outside the context of `play kube`. It is further not supported on the remote client. The wiring with systemd will be done in a later commit. Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Diffstat (limited to 'cmd/podman/play')
-rw-r--r--cmd/podman/play/kube.go9
1 files changed, 9 insertions, 0 deletions
diff --git a/cmd/podman/play/kube.go b/cmd/podman/play/kube.go
index 5fe059139..f5b121009 100644
--- a/cmd/podman/play/kube.go
+++ b/cmd/podman/play/kube.go
@@ -139,6 +139,15 @@ func init() {
flags.StringVar(&kubeOptions.ContextDir, contextDirFlagName, "", "Path to top level of context directory")
_ = kubeCmd.RegisterFlagCompletionFunc(contextDirFlagName, completion.AutocompleteDefault)
+ // NOTE: The service-container flag is marked as hidden as it
+ // is purely designed for running play-kube in systemd units.
+ // It is not something users should need to know or care about.
+ //
+ // Having a flag rather than an env variable is cleaner.
+ serviceFlagName := "service-container"
+ flags.BoolVar(&kubeOptions.ServiceContainer, serviceFlagName, false, "Starts a service container before all pods")
+ _ = flags.MarkHidden("service-container")
+
flags.StringVar(&kubeOptions.SignaturePolicy, "signature-policy", "", "`Pathname` of signature policy file (not usually used)")
_ = flags.MarkHidden("signature-policy")