Warning messages are printed and ignored if we use an unsupported option

When an unsupported limit on cgroups V1 rootless systems
is requested, podman prints an warning message and
ignores the option/flag.

```
  Target options/flags:
    --cpu-period, --cpu-quota, --cpu-rt-period, --cpu-rt-runtime,
    --cpus, --cpu-shares, --cpuset-cpus, --cpuset-mems, --memory,
    --memory-reservation, --memory-swap, --memory-swappiness,
    --blkio-weight, --device-read-bps, --device-write-bps,
    --device-read-iops, --device-write-iops, --blkio-weight-device
```

Related to https://github.com/containers/podman/discussions/10152

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>

5 files changed, 13 insertions, 1 deletions

diff --git a/test/e2e/container_clone_test.go b/test/e2e/container_clone_test.go
index 94ccd6ffe..d7641e42a 100644
--- a/test/e2e/container_clone_test.go
+++ b/test/e2e/container_clone_test.go
@@ -87,6 +87,7 @@ var _ = Describe("Podman container clone", func() {
 	})
 
 	It("podman container clone resource limits override", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		create := podmanTest.Podman([]string{"create", "--cpus=5", ALPINE})
 		create.WaitWithDefaultTimeout()
 		Expect(create).To(Exit(0))
diff --git a/test/e2e/create_test.go b/test/e2e/create_test.go
index 9679aad24..b35d0f3c5 100644
--- a/test/e2e/create_test.go
+++ b/test/e2e/create_test.go
@@ -438,6 +438,7 @@ var _ = Describe("Podman create", func() {
 	})
 
 	It("podman create with -m 1000000 sets swap to 2000000", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		numMem := 1000000
 		ctrName := "testCtr"
 		session := podmanTest.Podman([]string{"create", "-t", "-m", fmt.Sprintf("%db", numMem), "--name", ctrName, ALPINE, "/bin/sh"})
@@ -452,6 +453,7 @@ var _ = Describe("Podman create", func() {
 	})
 
 	It("podman create --cpus 5 sets nanocpus", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		numCpus := 5
 		nanoCPUs := numCpus * 1000000000
 		ctrName := "testCtr"
diff --git a/test/e2e/generate_kube_test.go b/test/e2e/generate_kube_test.go
index 142f32d19..e7ceaf2d2 100644
--- a/test/e2e/generate_kube_test.go
+++ b/test/e2e/generate_kube_test.go
@@ -490,6 +490,7 @@ var _ = Describe("Podman generate kube", func() {
 	})
 
 	It("podman generate kube on pod with memory limit", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		podName := "testMemoryLimit"
 		podSession := podmanTest.Podman([]string{"pod", "create", "--name", podName})
 		podSession.WaitWithDefaultTimeout()
@@ -515,6 +516,7 @@ var _ = Describe("Podman generate kube", func() {
 	})
 
 	It("podman generate kube on pod with cpu limit", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		podName := "testCpuLimit"
 		podSession := podmanTest.Podman([]string{"pod", "create", "--name", podName})
 		podSession.WaitWithDefaultTimeout()
diff --git a/test/e2e/generate_spec_test.go b/test/e2e/generate_spec_test.go
index 57cd9546b..9188b5222 100644
--- a/test/e2e/generate_spec_test.go
+++ b/test/e2e/generate_spec_test.go
@@ -41,6 +41,7 @@ var _ = Describe("Podman generate spec", func() {
 	})
 
 	It("podman generate spec basic usage", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		session := podmanTest.Podman([]string{"create", "--cpus", "5", "--name", "specgen", ALPINE})
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
@@ -51,6 +52,7 @@ var _ = Describe("Podman generate spec", func() {
 	})
 
 	It("podman generate spec file", func() {
+		SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
 		session := podmanTest.Podman([]string{"create", "--cpus", "5", "--name", "specgen", ALPINE})
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
diff --git a/test/system/030-run.bats b/test/system/030-run.bats
index 908c169ee..a3bfe5780 100644
--- a/test/system/030-run.bats
+++ b/test/system/030-run.bats
@@ -56,7 +56,12 @@ echo $rand        |   0 | $rand
 
 @test "podman run --memory=0 runtime option" {
     run_podman run --memory=0 --rm $IMAGE echo hello
-    is "$output" "hello" "failed to run when --memory is set to 0"
+    if is_rootless && ! is_cgroupsv2; then
+        is "${lines[0]}" "Resource limits are not supported and ignored on cgroups V1 rootless systems" "--memory is not supported"
+        is "${lines[1]}" "hello" "--memory is ignored"
+    else
+        is "$output" "hello" "failed to run when --memory is set to 0"
+    fi
 }
 
 # 'run --preserve-fds' passes a number of additional file descriptors into the container