Make the healthcheck flags compatible with Docker CLI

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>

1 files changed, 16 insertions, 0 deletions

diff --git a/cmd/podman/utils.go b/cmd/podman/utils.go
index 0790f673a..c0ddaba4e 100644
--- a/cmd/podman/utils.go
+++ b/cmd/podman/utils.go
@@ -47,3 +47,19 @@ func markFlagHidden(flags *pflag.FlagSet, flag string) {
 		logrus.Errorf("unable to mark flag '%s' as hidden: %q", flag, err)
 	}
 }
+
+func aliasFlags(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	switch name {
+	case "healthcheck-command":
+		name = "health-cmd"
+	case "healthcheck-interval":
+		name = "health-interval"
+	case "healthcheck-retries":
+		name = "health-retries"
+	case "healthcheck-start-period":
+		name = "health-start-period"
+	case "healthcheck-timeout":
+		name = "health-timeout"
+	}
+	return pflag.NormalizedName(name)
+}