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authorAditya R <arajan@redhat.com>2022-03-02 15:07:06 +0530
committerAditya R <arajan@redhat.com>2022-03-02 19:02:33 +0530
commit0bd0ad59436436e93ac81ce46059d8618ed7766c (patch)
treeed3c97ca2cb90b11b557b4db9dcab97ee2e623c6 /test/e2e
parent7877b02aacf3e8d3d37f6283c6b8aa81688fd120 (diff)
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container: workdir resolution must consider symlink if explicitly configured
While resolving `workdir` we mostly create a `workdir` when `stat` fails with `ENOENT` or `ErrNotExist` however following cases are not true when user explicitly specifies a `workdir` while `running` using `--workdir` which tells `podman` to only use workdir if its exists on the container. Following configuration is implicity set with other `run` mechanism like `podman play kube` Problem with explicit `--workdir` or similar implicit config in `podman play kube` is that currently podman ignores the fact that workdir can also be a `symlink` and actual `link` could be valid. Hence following commit ensures that in such scenarios when a `workdir` is not found and we cannot create a `workdir` podman must perform a check to ensure that if `workdir` is a `symlink` and `link` is resolved successfully and resolved link is present on the container then we return as it is. Docker performs a similar behviour. Signed-off-by: Aditya R <arajan@redhat.com>
Diffstat (limited to 'test/e2e')
-rw-r--r--test/e2e/build/workdir-symlink/Dockerfile5
-rw-r--r--test/e2e/build_test.go13
-rw-r--r--test/e2e/play_kube_test.go35
3 files changed, 53 insertions, 0 deletions
diff --git a/test/e2e/build/workdir-symlink/Dockerfile b/test/e2e/build/workdir-symlink/Dockerfile
new file mode 100644
index 000000000..abc9b47ee
--- /dev/null
+++ b/test/e2e/build/workdir-symlink/Dockerfile
@@ -0,0 +1,5 @@
+FROM alpine
+RUN mkdir /tmp/destination
+RUN ln -s /tmp/destination /tmp/link
+WORKDIR /tmp/link
+CMD ["echo", "hello"]
diff --git a/test/e2e/build_test.go b/test/e2e/build_test.go
index a1c2f5e54..14fa12fa2 100644
--- a/test/e2e/build_test.go
+++ b/test/e2e/build_test.go
@@ -259,6 +259,19 @@ var _ = Describe("Podman build", func() {
Expect(session.OutputToString()).NotTo(ContainSubstring("io.podman.annotations.seccomp"))
})
+ It("podman build where workdir is a symlink and run without creating new workdir", func() {
+ session := podmanTest.Podman([]string{
+ "build", "-f", "build/workdir-symlink/Dockerfile", "-t", "test-symlink",
+ })
+ session.WaitWithDefaultTimeout()
+ Expect(session).Should(Exit(0))
+
+ session = podmanTest.Podman([]string{"run", "--workdir", "/tmp/link", "test-symlink"})
+ session.WaitWithDefaultTimeout()
+ Expect(session).Should(Exit(0))
+ Expect(session.OutputToString()).To(ContainSubstring("hello"))
+ })
+
It("podman build --http_proxy flag", func() {
os.Setenv("http_proxy", "1.2.3.4")
if IsRemote() {
diff --git a/test/e2e/play_kube_test.go b/test/e2e/play_kube_test.go
index c0c71652e..9b1e0c74b 100644
--- a/test/e2e/play_kube_test.go
+++ b/test/e2e/play_kube_test.go
@@ -38,6 +38,21 @@ spec:
hostname: unknown
`
+var workdirSymlinkPodYaml = `
+apiVersion: v1
+kind: Pod
+metadata:
+ labels:
+ app: test-symlink
+ name: test-symlink
+spec:
+ containers:
+ - image: test-symlink
+ name: test-symlink
+ resources: {}
+ restartPolicy: Never
+`
+
var podnameEqualsContainerNameYaml = `
apiVersion: v1
kind: Pod
@@ -1332,6 +1347,26 @@ var _ = Describe("Podman play kube", func() {
Expect(sharednamespaces).To(ContainSubstring("pid"))
})
+ It("podman play kube should be able to run image where workdir is a symlink", func() {
+ session := podmanTest.Podman([]string{
+ "build", "-f", "build/workdir-symlink/Dockerfile", "-t", "test-symlink",
+ })
+ session.WaitWithDefaultTimeout()
+ Expect(session).Should(Exit(0))
+
+ err := writeYaml(workdirSymlinkPodYaml, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(0))
+
+ logs := podmanTest.Podman([]string{"pod", "logs", "-c", "test-symlink-test-symlink", "test-symlink"})
+ logs.WaitWithDefaultTimeout()
+ Expect(logs).Should(Exit(0))
+ Expect(logs.OutputToString()).To(ContainSubstring("hello"))
+ })
+
It("podman play kube should not rename pod if container in pod has same name", func() {
err := writeYaml(podnameEqualsContainerNameYaml, kubeYaml)
Expect(err).To(BeNil())