mirror of
https://github.com/containers/podman
synced 2024-10-21 17:53:44 +00:00
d6ea4b4139
...to work for specific edge cases with a simpler solution. Re-reads hooks directories after any changes are detected by the watchers. Added monitoring test for adding a different invalid hook to primary directory. Some issues with prior code: - ReadDir would stop when it encounters an invalid hook, rather than registering an error but continuing to read the valid hook. - Wouldn’t account for Rename and Chmod events. - After doing a mv of the hooks file instead of rm, it would still think the hooks file is in the directory, but it has been moved to another location. - If a hook file was renamed, it would register the renamed file as a separate hook and not delete the original, so it would then execute the hook twice - once for the renamed file, and once for the original name which it did not delete. Signed-off-by: samc24 <sam.chaturvedi24@gmail.com>
338 lines
7.7 KiB
Go
338 lines
7.7 KiB
Go
package hooks
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"testing"
|
|
"time"
|
|
|
|
rspec "github.com/opencontainers/runtime-spec/specs-go"
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestMonitorOneDirGood(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
dir, err := ioutil.TempDir("", "hooks-test-")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(dir)
|
|
|
|
manager, err := New(ctx, []string{dir}, []string{})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
sync := make(chan error, 2)
|
|
go manager.Monitor(ctx, sync)
|
|
err = <-sync
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
jsonPath := filepath.Join(dir, "a.json")
|
|
|
|
t.Run("good-addition", func(t *testing.T) {
|
|
err = ioutil.WriteFile(jsonPath, []byte(fmt.Sprintf("{\"version\": \"1.0.0\", \"hook\": {\"path\": \"%s\"}, \"when\": {\"always\": true}, \"stages\": [\"prestart\", \"poststart\", \"poststop\"]}", path)), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
assert.Equal(t, &rspec.Hooks{
|
|
Prestart: []rspec.Hook{
|
|
{
|
|
Path: path,
|
|
},
|
|
},
|
|
Poststart: []rspec.Hook{
|
|
{
|
|
Path: path,
|
|
},
|
|
},
|
|
Poststop: []rspec.Hook{
|
|
{
|
|
Path: path,
|
|
},
|
|
},
|
|
}, config.Hooks)
|
|
})
|
|
|
|
t.Run("good-removal", func(t *testing.T) {
|
|
err = os.Remove(jsonPath)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
expected := config.Hooks
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, expected, config.Hooks)
|
|
})
|
|
|
|
t.Run("bad-addition", func(t *testing.T) {
|
|
err = ioutil.WriteFile(jsonPath, []byte("{\"version\": \"-1\"}"), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
expected := config.Hooks
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, expected, config.Hooks)
|
|
|
|
err = os.Remove(jsonPath)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
})
|
|
|
|
cancel()
|
|
err = <-sync
|
|
assert.Equal(t, context.Canceled, err)
|
|
}
|
|
|
|
func TestMonitorTwoDirGood(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
primaryDir, err := ioutil.TempDir("", "hooks-test-primary-")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(primaryDir)
|
|
|
|
fallbackDir, err := ioutil.TempDir("", "hooks-test-fallback-")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(fallbackDir)
|
|
|
|
manager, err := New(ctx, []string{fallbackDir, primaryDir}, []string{})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
sync := make(chan error, 2)
|
|
go manager.Monitor(ctx, sync)
|
|
err = <-sync
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
fallbackPath := filepath.Join(fallbackDir, "a.json")
|
|
fallbackJSON := []byte(fmt.Sprintf("{\"version\": \"1.0.0\", \"hook\": {\"path\": \"%s\"}, \"when\": {\"always\": true}, \"stages\": [\"prestart\"]}", path))
|
|
fallbackInjected := &rspec.Hooks{
|
|
Prestart: []rspec.Hook{
|
|
{
|
|
Path: path,
|
|
},
|
|
},
|
|
}
|
|
|
|
t.Run("good-fallback-addition", func(t *testing.T) {
|
|
err = ioutil.WriteFile(fallbackPath, fallbackJSON, 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
assert.Equal(t, fallbackInjected, config.Hooks)
|
|
})
|
|
|
|
primaryPath := filepath.Join(primaryDir, "a.json")
|
|
primaryJSON := []byte(fmt.Sprintf("{\"version\": \"1.0.0\", \"hook\": {\"path\": \"%s\", \"timeout\": 1}, \"when\": {\"always\": true}, \"stages\": [\"prestart\"]}", path))
|
|
one := 1
|
|
primaryInjected := &rspec.Hooks{
|
|
Prestart: []rspec.Hook{
|
|
{
|
|
Path: path,
|
|
Timeout: &one,
|
|
},
|
|
},
|
|
}
|
|
|
|
t.Run("good-primary-override", func(t *testing.T) {
|
|
err = ioutil.WriteFile(primaryPath, primaryJSON, 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
assert.Equal(t, primaryInjected, config.Hooks)
|
|
})
|
|
|
|
t.Run("good-fallback-removal", func(t *testing.T) {
|
|
err = os.Remove(fallbackPath)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, primaryInjected, config.Hooks) // masked by primary
|
|
})
|
|
|
|
t.Run("good-fallback-restore", func(t *testing.T) {
|
|
err = ioutil.WriteFile(fallbackPath, fallbackJSON, 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, primaryInjected, config.Hooks) // masked by primary
|
|
})
|
|
|
|
primaryPath2 := filepath.Join(primaryDir, "0a.json") //0a because it will be before a.json alphabetically
|
|
|
|
t.Run("bad-primary-new-addition", func(t *testing.T) {
|
|
err = ioutil.WriteFile(primaryPath2, []byte("{\"version\": \"-1\"}"), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
fmt.Println("expected: ", config.Hooks)
|
|
expected := primaryInjected // 0a.json is bad, a.json is still good
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
fmt.Println("actual: ", config.Hooks)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, expected, config.Hooks)
|
|
})
|
|
|
|
t.Run("bad-primary-same-addition", func(t *testing.T) {
|
|
err = ioutil.WriteFile(primaryPath, []byte("{\"version\": \"-1\"}"), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
expected := fallbackInjected
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, expected, config.Hooks)
|
|
})
|
|
|
|
t.Run("good-primary-removal", func(t *testing.T) {
|
|
err = os.Remove(primaryPath)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, fallbackInjected, config.Hooks)
|
|
})
|
|
|
|
t.Run("good-non-json-addition", func(t *testing.T) {
|
|
err = ioutil.WriteFile(filepath.Join(fallbackDir, "README"), []byte("Hello"), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
assert.Equal(t, fallbackInjected, config.Hooks)
|
|
})
|
|
|
|
t.Run("good-fallback-removal", func(t *testing.T) {
|
|
err = os.Remove(fallbackPath)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
|
|
|
|
config := &rspec.Spec{}
|
|
expected := config.Hooks
|
|
_, err = manager.Hooks(config, map[string]string{}, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, expected, config.Hooks)
|
|
})
|
|
|
|
cancel()
|
|
err = <-sync
|
|
assert.Equal(t, context.Canceled, err)
|
|
}
|
|
|
|
func TestMonitorBadWatcher(t *testing.T) {
|
|
ctx := context.Background()
|
|
|
|
manager, err := New(ctx, []string{}, []string{})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
manager.directories = []string{"/does/not/exist"}
|
|
|
|
sync := make(chan error, 2)
|
|
go manager.Monitor(ctx, sync)
|
|
err = <-sync
|
|
if !os.IsNotExist(err) {
|
|
t.Fatal("opaque wrapping for not-exist errors")
|
|
}
|
|
}
|