create: improve parser for --healthcheck-command

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>

1 files changed, 4 insertions, 1 deletions

diff --git a/docs/podman-create.1.md b/docs/podman-create.1.md
index 87e18dbb9..ea01a346c 100644
--- a/docs/podman-create.1.md
+++ b/docs/podman-create.1.md
@@ -272,12 +272,15 @@ The following example maps uids 0-2000 in the container to the uids 30000-31999
 
 Add additional groups to run as
 
-**--healthcheck-command**=*command*
+**--healthcheck-command**=*"command"* | *'["command", "arg1", ...]'*
 
 Set or alter a healthcheck command for a container. The command is a command to be executed inside your
 container that determines your container health.  The command is required for other healthcheck options
 to be applied.  A value of `none` disables existing healthchecks.
 
+Multiple options can be passed in the form of a JSON array; otherwise, the command will be interpreted
+as an argument to `/bin/sh -c`.
+
 **--healthcheck-interval**=*interval*
 
 Set an interval for the healthchecks (a value of `disable` results in no automatic timer setup) (default "30s")