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Prevent ctrs not in pods from depending on pod ctrs

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Containers in pods cannot depend on containers outside of the
same pod. Make the reverse true as well - containers not in pods
cannot depend on containers in pods. This greatly simplifies our
dependency handling, as we can guarantee that removing a pod will
not encounter dependency issues.

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

Closes: #558
Approved by: rhatdan
This commit is contained in:
Matthew Heon
2018-03-27 15:00:16 -04:00
committed by Atomic Bot
parent 196c3ab3a5
commit 5b6f59e36c
3 changed files with 46 additions and 38 deletions
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64
libpod/state_test.go
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@ -273,6 +273,38 @@ func TestAddCtrInPodFails(t *testing.T) {
})
}
func TestAddCtrDepInPodFails(t *testing.T) {
runForAllStates(t, func(t *testing.T, state State, lockPath string) {
testPod, err := getTestPod1(lockPath)
assert.NoError(t, err)
testCtr1, err := getTestCtr2(lockPath)
assert.NoError(t, err)
testCtr1.config.Pod = testPod.ID()
testCtr2, err := getTestCtrN("3", lockPath)
assert.NoError(t, err)
testCtr2.config.UserNsCtr = testCtr1.ID()
err = state.AddPod(testPod)
assert.NoError(t, err)
err = state.AddContainerToPod(testPod, testCtr1)
assert.NoError(t, err)
err = state.AddContainer(testCtr2)
assert.Error(t, err)
ctrs, err := state.AllContainers()
assert.NoError(t, err)
assert.Equal(t, 1, len(ctrs))
testContainersEqual(t, testCtr1, ctrs[0])
})
}
func TestGetNonexistentContainerFails(t *testing.T) {
runForAllStates(t, func(t *testing.T, state State, lockPath string) {
_, err := state.Container("does not exist")
@ -1749,38 +1781,6 @@ func TestRemovePodContainerDependencyInPod(t *testing.T) {
})
}
func TestRemovePodContainerDependencyNotInPod(t *testing.T) {
runForAllStates(t, func(t *testing.T, state State, lockPath string) {
testPod, err := getTestPod1(lockPath)
assert.NoError(t, err)
testCtr1, err := getTestCtr2(lockPath)
assert.NoError(t, err)
testCtr1.config.Pod = testPod.ID()
testCtr2, err := getTestCtrN("3", lockPath)
assert.NoError(t, err)
testCtr2.config.IPCNsCtr = testCtr1.ID()
err = state.AddPod(testPod)
assert.NoError(t, err)
err = state.AddContainerToPod(testPod, testCtr1)
assert.NoError(t, err)
err = state.AddContainer(testCtr2)
assert.NoError(t, err)
err = state.RemovePodContainers(testPod)
t.Logf("Err %v", err)
assert.Error(t, err)
ctrs, err := state.PodContainersByID(testPod)
assert.NoError(t, err)
assert.Equal(t, 1, len(ctrs))
})
}
func TestAddContainerToPodInvalidPod(t *testing.T) {
runForAllStates(t, func(t *testing.T, state State, lockPath string) {
testCtr, err := getTestCtr1(lockPath)