podman healthcheck run (phase 1)

Add the ability to manually run a container's healthcheck command.
This is only the first phase of implementing the healthcheck.
Subsequent pull requests will deal with the exposing the results and
history of healthchecks as well as the scheduling.

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/cmd/podman/healthcheck_run.go b/cmd/podman/healthcheck_run.go
new file mode 100644
index 000000000..a91f87146
--- /dev/null
+++ b/cmd/podman/healthcheck_run.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"github.com/containers/libpod/cmd/podman/cliconfig"
+	"github.com/containers/libpod/libpod"
+	"github.com/containers/libpod/pkg/adapter"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	healthcheckRunCommand     cliconfig.HealthCheckValues
+	healthcheckRunDescription = "run the health check of a container"
+	_healthcheckrunCommand    = &cobra.Command{
+		Use:     "run CONTAINER",
+		Short:   "run the health check of a container",
+		Long:    healthcheckRunDescription,
+		Example: `podman healthcheck run mywebapp`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			healthcheckRunCommand.InputArgs = args
+			healthcheckRunCommand.GlobalFlags = MainGlobalOpts
+			return healthCheckCmd(&healthcheckRunCommand)
+		},
+		Args: func(cmd *cobra.Command, args []string) error {
+			if len(args) < 1 || len(args) > 1 {
+				return errors.New("must provide the name or ID of one container")
+			}
+			return nil
+		},
+	}
+)
+
+func init() {
+	healthcheckRunCommand.Command = _healthcheckrunCommand
+	healthcheckRunCommand.SetUsageTemplate(UsageTemplate())
+}
+
+func healthCheckCmd(c *cliconfig.HealthCheckValues) error {
+	runtime, err := adapter.GetRuntime(&c.PodmanCommand)
+	if err != nil {
+		return errors.Wrap(err, "could not get runtime")
+	}
+	status, err := runtime.HealthCheck(c)
+	if err != nil {
+		if status == libpod.HealthCheckFailure {
+			fmt.Println("\nunhealthy")
+		}
+		return err
+	}
+	fmt.Println("\nhealthy")
+	return nil
+}