podman inspect add State.Health field for docker compat

podman inspect shows the healthcheck status in `.State.Healthcheck`,
docker uses `.State.Health`. To make sure docker scripts work we
should add the `Health` key. Because we do not want to display both keys
by default we only use the new `Health` key. This is a breaking change
for podman users but matches what docker does. To provide some form of
compatibility users can still use `--format {{.State.Healthcheck}}`. IT
is just not shown by default.

Fixes containers#11645

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

libpod/container_inspect.go

@@ -156,7 +156,7 @@ func (c *Container) getContainerInspectData(size bool, driverData *define.Driver
 			// An error here is not considered fatal; no health state will be displayed
 			logrus.Error(err)
 		} else {
-			data.State.Healthcheck = healthCheckState
+			data.State.Health = healthCheckState
 		}
 	}
 

libpod/define/container_inspect.go

@@ -202,10 +202,16 @@ type InspectContainerState struct {
 	Error        string             `json:"Error"` // TODO
 	StartedAt    time.Time          `json:"StartedAt"`
 	FinishedAt   time.Time          `json:"FinishedAt"`
-	Healthcheck  HealthCheckResults `json:"Healthcheck,omitempty"`
+	Health       HealthCheckResults `json:"Health,omitempty"`
 	Checkpointed bool               `json:"Checkpointed,omitempty"`
 }
 
+// Healthcheck returns the HealthCheckResults. This is used for old podman compat
+// to make the "Healthcheck" key available in the go template.
+func (s *InspectContainerState) Healthcheck() HealthCheckResults {
+	return s.Health
+}
+
 // HealthCheckResults describes the results/logs from a healthcheck
 type HealthCheckResults struct {
 	// Status healthy or unhealthy

pkg/api/handlers/compat/containers.go

@@ -410,11 +410,11 @@ func LibpodToContainerJSON(l *libpod.Container, sz bool) (*types.ContainerJSON,
 
 	if l.HasHealthCheck() && state.Status != "created" {
 		state.Health = &types.Health{
-			Status:        inspect.State.Healthcheck.Status,
-			FailingStreak: inspect.State.Healthcheck.FailingStreak,
+			Status:        inspect.State.Health.Status,
+			FailingStreak: inspect.State.Health.FailingStreak,
 		}
 
-		log := inspect.State.Healthcheck.Log
+		log := inspect.State.Health.Log
 
 		for _, item := range log {
 			res := &types.HealthcheckResult{}

test/apiv2/python/rest_api/test_v2_0_0_container.py

@@ -56,7 +56,7 @@ def test_inspect(self):
         self.assertEqual(r.status_code, 200, r.text)
         self.assertId(r.content)
         out = r.json()
-        self.assertIsNone(out["State"].get("Health"))
+        self.assertIsNotNone(out["State"].get("Health"))
         self.assertListEqual(["CMD", "pidof", "top"], out["Config"]["Healthcheck"]["Test"])
         self.assertEqual(5000000000, out["Config"]["Healthcheck"]["Interval"])
         self.assertEqual(2000000000, out["Config"]["Healthcheck"]["Timeout"])

test/e2e/healthcheck_run_test.go

@@ -117,7 +117,7 @@ var _ = Describe("Podman healthcheck run", func() {
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
 		inspect := podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal("starting"))
+		Expect(inspect[0].State.Health.Status).To(Equal("starting"))
 	})
 
 	It("podman healthcheck failed checks in start-period should not change status", func() {
@@ -138,7 +138,9 @@ var _ = Describe("Podman healthcheck run", func() {
 		Expect(hc).Should(Exit(1))
 
 		inspect := podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal("starting"))
+		Expect(inspect[0].State.Health.Status).To(Equal("starting"))
+		// test old podman compat (see #11645)
+		Expect(inspect[0].State.Healthcheck().Status).To(Equal("starting"))
 	})
 
 	It("podman healthcheck failed checks must reach retries before unhealthy ", func() {
@@ -151,15 +153,16 @@ var _ = Describe("Podman healthcheck run", func() {
 		Expect(hc).Should(Exit(1))
 
 		inspect := podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal("starting"))
+		Expect(inspect[0].State.Health.Status).To(Equal("starting"))
 
 		hc = podmanTest.Podman([]string{"healthcheck", "run", "hc"})
 		hc.WaitWithDefaultTimeout()
 		Expect(hc).Should(Exit(1))
 
 		inspect = podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal(define.HealthCheckUnhealthy))
-
+		Expect(inspect[0].State.Health.Status).To(Equal(define.HealthCheckUnhealthy))
+		// test old podman compat (see #11645)
+		Expect(inspect[0].State.Healthcheck().Status).To(Equal(define.HealthCheckUnhealthy))
 	})
 
 	It("podman healthcheck good check results in healthy even in start-period", func() {
@@ -172,7 +175,7 @@ var _ = Describe("Podman healthcheck run", func() {
 		Expect(hc).Should(Exit(0))
 
 		inspect := podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal(define.HealthCheckHealthy))
+		Expect(inspect[0].State.Health.Status).To(Equal(define.HealthCheckHealthy))
 	})
 
 	It("podman healthcheck unhealthy but valid arguments check", func() {
@@ -195,14 +198,14 @@ var _ = Describe("Podman healthcheck run", func() {
 		Expect(hc).Should(Exit(1))
 
 		inspect := podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal("starting"))
+		Expect(inspect[0].State.Health.Status).To(Equal("starting"))
 
 		hc = podmanTest.Podman([]string{"healthcheck", "run", "hc"})
 		hc.WaitWithDefaultTimeout()
 		Expect(hc).Should(Exit(1))
 
 		inspect = podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal(define.HealthCheckUnhealthy))
+		Expect(inspect[0].State.Health.Status).To(Equal(define.HealthCheckUnhealthy))
 
 		foo := podmanTest.Podman([]string{"exec", "hc", "touch", "/foo"})
 		foo.WaitWithDefaultTimeout()
@@ -213,7 +216,7 @@ var _ = Describe("Podman healthcheck run", func() {
 		Expect(hc).Should(Exit(0))
 
 		inspect = podmanTest.InspectContainer("hc")
-		Expect(inspect[0].State.Healthcheck.Status).To(Equal(define.HealthCheckHealthy))
+		Expect(inspect[0].State.Health.Status).To(Equal(define.HealthCheckHealthy))
 
 		// Test podman ps --filter heath is working (#11687)
 		ps := podmanTest.Podman([]string{"ps", "--filter", "health=healthy"})

test/system/220-healthcheck.bats

@@ -12,13 +12,13 @@ function _check_health {
     local testname="$1"
     local tests="$2"
 
-    run_podman inspect --format json healthcheck_c
+    run_podman inspect --format "{{json .State.Healthcheck}}" healthcheck_c
 
     parse_table "$tests" | while read field expect;do
         # (kludge to deal with parse_table and empty strings)
         if [ "$expect" = "''" ]; then expect=""; fi
 
-        actual=$(jq -r ".[0].State.Healthcheck.$field" <<<"$output")
+        actual=$(jq -r ".$field" <<<"$output")
         is "$actual" "$expect" "$testname - .State.Healthcheck.$field"
     done
 }