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-rw-r--r--cmd/podman/libpodruntime/runtime.go4
-rw-r--r--cmd/podman/main.go9
-rw-r--r--docs/libpod.conf.5.md12
-rw-r--r--docs/podman.1.md24
-rw-r--r--libpod/container_internal.go48
-rw-r--r--libpod/container_internal_linux.go6
-rw-r--r--libpod/options.go15
-rw-r--r--libpod/runtime.go10
-rw-r--r--libpod/testdata/config.toml2
-rw-r--r--test/e2e/run_test.go2
10 files changed, 73 insertions, 59 deletions
diff --git a/cmd/podman/libpodruntime/runtime.go b/cmd/podman/libpodruntime/runtime.go
index a4b3581be..f69eaf3a4 100644
--- a/cmd/podman/libpodruntime/runtime.go
+++ b/cmd/podman/libpodruntime/runtime.go
@@ -90,8 +90,8 @@ func GetRuntimeWithStorageOpts(c *cli.Context, storageOpts *storage.StoreOptions
if c.GlobalIsSet("default-mounts-file") {
options = append(options, libpod.WithDefaultMountsFile(c.GlobalString("default-mounts-file")))
}
- if c.GlobalIsSet("hooks-dir-path") {
- options = append(options, libpod.WithHooksDir(c.GlobalString("hooks-dir-path")))
+ if c.GlobalIsSet("hooks-dir") {
+ options = append(options, libpod.WithHooksDir(c.GlobalStringSlice("hooks-dir")...))
}
// TODO flag to set CNI plugins dir?
diff --git a/cmd/podman/main.go b/cmd/podman/main.go
index 6be192593..bcae04575 100644
--- a/cmd/podman/main.go
+++ b/cmd/podman/main.go
@@ -8,7 +8,6 @@ import (
"syscall"
"github.com/containers/libpod/libpod"
- "github.com/containers/libpod/pkg/hooks"
_ "github.com/containers/libpod/pkg/hooks/0.1.0"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/libpod/version"
@@ -206,11 +205,9 @@ func main() {
Usage: "path to default mounts file",
Hidden: true,
},
- cli.StringFlag{
- Name: "hooks-dir-path",
- Usage: "set the OCI hooks directory path",
- Value: hooks.DefaultDir,
- Hidden: true,
+ cli.StringSliceFlag{
+ Name: "hooks-dir",
+ Usage: "set the OCI hooks directory path (may be set multiple times)",
},
cli.IntFlag{
Name: "max-workers",
diff --git a/docs/libpod.conf.5.md b/docs/libpod.conf.5.md
index 198e927ee..d63baeb88 100644
--- a/docs/libpod.conf.5.md
+++ b/docs/libpod.conf.5.md
@@ -24,6 +24,18 @@ libpod to manage containers.
**cgroup_manager**=""
Specify the CGroup Manager to use; valid values are "systemd" and "cgroupfs"
+**hooks_dir**=["*path*", ...]
+
+ Each `*.json` file in the path configures a hook for Podman containers. For more details on the syntax of the JSON files and the semantics of hook injection, see `oci-hooks(5)`. Podman and libpod currently support both the 1.0.0 and 0.1.0 hook schemas, although the 0.1.0 schema is deprecated.
+
+ Paths listed later in the array higher precedence (`oci-hooks(5)` discusses directory precedence).
+
+ For the annotation conditions, libpod uses any annotations set in the generated OCI configuration.
+
+ For the bind-mount conditions, only mounts explicitly requested by the caller via `--volume` are considered. Bind mounts that libpod inserts by default (e.g. `/dev/shm`) are not considered.
+
+ If `hooks_dir` is unset for root callers, Podman and libpod will currently default to `/usr/share/containers/oci/hooks.d` and `/etc/containers/oci/hooks.d` in order of increasing precedence. Using these defaults is deprecated, and callers should migrate to explicitly setting `hooks_dir`.
+
**static_dir**=""
Directory for persistent libpod files (database, etc)
By default this will be configured relative to where containers/storage
diff --git a/docs/podman.1.md b/docs/podman.1.md
index b7433d850..bde349e6f 100644
--- a/docs/podman.1.md
+++ b/docs/podman.1.md
@@ -31,6 +31,18 @@ CGroup manager to use for container cgroups. Supported values are cgroupfs or sy
Path to where the cpu performance results should be written
+**--hooks-dir**=**path**
+
+Each `*.json` file in the path configures a hook for Podman containers. For more details on the syntax of the JSON files and the semantics of hook injection, see `oci-hooks(5)`. Podman and libpod currently support both the 1.0.0 and 0.1.0 hook schemas, although the 0.1.0 schema is deprecated.
+
+This option may be set multiple times; paths from later options have higher precedence (`oci-hooks(5)` discusses directory precedence).
+
+For the annotation conditions, libpod uses any annotations set in the generated OCI configuration.
+
+For the bind-mount conditions, only mounts explicitly requested by the caller via `--volume` are considered. Bind mounts that libpod inserts by default (e.g. `/dev/shm`) are not considered.
+
+If `--hooks-dir` is unset for root callers, Podman and libpod will currently default to `/usr/share/containers/oci/hooks.d` and `/etc/containers/oci/hooks.d` in order of increasing precedence. Using these defaults is deprecated, and callers should migrate to explicitly setting `--hooks-dir`.
+
**--log-level**
Log messages above specified level: debug, info, warn, error (default), fatal or panic
@@ -161,18 +173,6 @@ the exit codes follow the `chroot` standard, see below:
The mounts.conf file specifies volume mount directories that are automatically mounted inside containers when executing the `podman run` or `podman start` commands. When Podman runs in rootless mode, the file `$HOME/.config/containers/mounts.conf` is also used. Please refer to containers-mounts.conf(5) for further details.
-**OCI hooks JSON** (`/etc/containers/oci/hooks.d/*.json`, `/usr/share/containers/oci/hooks.d/*.json`)
-
- Each `*.json` file in `/etc/containers/oci/hooks.d` and `/usr/share/containers/oci/hooks.d` configures a hook for Podman containers, with `/etc/containers/oci/hooks.d` having higher precedence. For more details on the syntax of the JSON files and the semantics of hook injection, see `oci-hooks(5)`.
-
- Podman and libpod currently support both the 1.0.0 and 0.1.0 hook schemas, although the 0.1.0 schema is deprecated.
-
- For the annotation conditions, libpod uses any annotations set in the generated OCI configuration.
-
- For the bind-mount conditions, only mounts explicitly requested by the caller via `--volume` are considered. Bind mounts that libpod inserts by default (e.g. `/dev/shm`) are not considered.
-
- Hooks are not used when running in rootless mode.
-
**policy.json** (`/etc/containers/policy.json`)
Signature verification policy files are used to specify policy, e.g. trusted keys, applicable when deciding whether to accept an image, or individual signatures of that image, as valid.
diff --git a/libpod/container_internal.go b/libpod/container_internal.go
index e31a8099c..934ad7a22 100644
--- a/libpod/container_internal.go
+++ b/libpod/container_internal.go
@@ -1168,10 +1168,6 @@ func (c *Container) saveSpec(spec *spec.Spec) error {
}
func (c *Container) setupOCIHooks(ctx context.Context, config *spec.Spec) (extensionStageHooks map[string][]spec.Hook, err error) {
- if len(c.runtime.config.HooksDir) == 0 {
- return nil, nil
- }
-
var locale string
var ok bool
for _, envVar := range []string{
@@ -1199,25 +1195,39 @@ func (c *Container) setupOCIHooks(ctx context.Context, config *spec.Spec) (exten
}
}
- allHooks := make(map[string][]spec.Hook)
- for _, hDir := range c.runtime.config.HooksDir {
- manager, err := hooks.New(ctx, []string{hDir}, []string{"poststop"}, lang)
- if err != nil {
- if c.runtime.config.HooksDirNotExistFatal || !os.IsNotExist(err) {
- return nil, err
- }
- logrus.Warnf("failed to load hooks: %q", err)
+ if c.runtime.config.HooksDir == nil {
+ if rootless.IsRootless() {
return nil, nil
}
- hooks, err := manager.Hooks(config, c.Spec().Annotations, len(c.config.UserVolumes) > 0)
- if err != nil {
- return nil, err
- }
- for i, hook := range hooks {
- allHooks[i] = hook
+ allHooks := make(map[string][]spec.Hook)
+ for _, hDir := range []string{hooks.DefaultDir, hooks.OverrideDir} {
+ manager, err := hooks.New(ctx, []string{hDir}, []string{"poststop"}, lang)
+ if err != nil {
+ if os.IsNotExist(err) {
+ continue
+ }
+ return nil, err
+ }
+ hooks, err := manager.Hooks(config, c.Spec().Annotations, len(c.config.UserVolumes) > 0)
+ if err != nil {
+ return nil, err
+ }
+ if len(hooks) > 0 || config.Hooks != nil {
+ logrus.Warnf("implicit hook directories are deprecated; set --hooks-dir=%q explicitly to continue to load hooks from this directory", hDir)
+ }
+ for i, hook := range hooks {
+ allHooks[i] = hook
+ }
}
+ return allHooks, nil
}
- return allHooks, nil
+
+ manager, err := hooks.New(ctx, c.runtime.config.HooksDir, []string{"poststop"}, lang)
+ if err != nil {
+ return nil, err
+ }
+
+ return manager.Hooks(config, c.Spec().Annotations, len(c.config.UserVolumes) > 0)
}
// mount mounts the container's root filesystem
diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go
index 8861d7728..780bf5279 100644
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@@ -224,10 +224,8 @@ func (c *Container) generateSpec(ctx context.Context) (*spec.Spec, error) {
}
}
- if !rootless.IsRootless() {
- if c.state.ExtensionStageHooks, err = c.setupOCIHooks(ctx, g.Config); err != nil {
- return nil, errors.Wrapf(err, "error setting up OCI Hooks")
- }
+ if c.state.ExtensionStageHooks, err = c.setupOCIHooks(ctx, g.Config); err != nil {
+ return nil, errors.Wrapf(err, "error setting up OCI Hooks")
}
// Bind builtin image volumes
diff --git a/libpod/options.go b/libpod/options.go
index 7f4e3ac6b..e1d0b5007 100644
--- a/libpod/options.go
+++ b/libpod/options.go
@@ -179,21 +179,20 @@ func WithStaticDir(dir string) RuntimeOption {
}
}
-// WithHooksDir sets the directory to look for OCI runtime hooks config.
-// Note we are not saving this in database, since this is really just for used
-// for testing.
-func WithHooksDir(hooksDir string) RuntimeOption {
+// WithHooksDir sets the directories to look for OCI runtime hook configuration.
+func WithHooksDir(hooksDirs ...string) RuntimeOption {
return func(rt *Runtime) error {
if rt.valid {
return ErrRuntimeFinalized
}
- if hooksDir == "" {
- return errors.Wrap(ErrInvalidArg, "empty-string hook directories are not supported")
+ for _, hooksDir := range hooksDirs {
+ if hooksDir == "" {
+ return errors.Wrap(ErrInvalidArg, "empty-string hook directories are not supported")
+ }
}
- rt.config.HooksDir = []string{hooksDir}
- rt.config.HooksDirNotExistFatal = true
+ rt.config.HooksDir = hooksDirs
return nil
}
}
diff --git a/libpod/runtime.go b/libpod/runtime.go
index 9feae03fc..e043715b1 100644
--- a/libpod/runtime.go
+++ b/libpod/runtime.go
@@ -12,7 +12,6 @@ import (
"github.com/containers/image/types"
"github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/pkg/firewall"
- "github.com/containers/libpod/pkg/hooks"
sysreg "github.com/containers/libpod/pkg/registries"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/libpod/pkg/util"
@@ -141,11 +140,11 @@ type RuntimeConfig struct {
// CNIDefaultNetwork is the network name of the default CNI network
// to attach pods to
CNIDefaultNetwork string `toml:"cni_default_network,omitempty"`
- // HooksDir Path to the directory containing hooks configuration files
+ // HooksDir holds paths to the directories containing hooks
+ // configuration files. When the same filename is present in in
+ // multiple directories, the file in the directory listed last in
+ // this slice takes precedence.
HooksDir []string `toml:"hooks_dir"`
- // HooksDirNotExistFatal switches between fatal errors and non-fatal
- // warnings if the configured HooksDir does not exist.
- HooksDirNotExistFatal bool `toml:"hooks_dir_not_exist_fatal"`
// DefaultMountsFile is the path to the default mounts file for testing
// purposes only
DefaultMountsFile string `toml:"-"`
@@ -203,7 +202,6 @@ var (
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
},
CgroupManager: SystemdCgroupsManager,
- HooksDir: []string{hooks.DefaultDir, hooks.OverrideDir},
StaticDir: filepath.Join(storage.DefaultStoreOptions.GraphRoot, "libpod"),
TmpDir: "",
MaxLogSize: -1,
diff --git a/libpod/testdata/config.toml b/libpod/testdata/config.toml
index e19d36017..1d78f2083 100644
--- a/libpod/testdata/config.toml
+++ b/libpod/testdata/config.toml
@@ -14,7 +14,7 @@
seccomp_profile = "/etc/crio/seccomp.json"
apparmor_profile = "crio-default"
cgroup_manager = "cgroupfs"
- hooks_dir_path = "/usr/share/containers/oci/hooks.d"
+ hooks_dir = ["/usr/share/containers/oci/hooks.d"]
pids_limit = 2048
container_exits_dir = "/var/run/podman/exits"
[crio.image]
diff --git a/test/e2e/run_test.go b/test/e2e/run_test.go
index aaee7fa53..4a9bd4e46 100644
--- a/test/e2e/run_test.go
+++ b/test/e2e/run_test.go
@@ -336,7 +336,7 @@ var _ = Describe("Podman run", func() {
hooksDir := tempdir + "/hooks"
os.Mkdir(hooksDir, 0755)
fileutils.CopyFile("hooks/hooks.json", hooksDir)
- os.Setenv("HOOK_OPTION", fmt.Sprintf("--hooks-dir-path=%s", hooksDir))
+ os.Setenv("HOOK_OPTION", fmt.Sprintf("--hooks-dir=%s", hooksDir))
os.Remove(hcheck)
session := podmanTest.Podman([]string{"run", ALPINE, "ls"})
session.Wait(10)
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-12 08:23:47 +0000