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-rw-r--r--pkg/api/handlers/libpod/generate.go45
-rw-r--r--pkg/api/server/register_generate.go62
-rw-r--r--pkg/bindings/generate/generate.go27
-rw-r--r--pkg/domain/entities/generate.go7
-rw-r--r--pkg/domain/infra/abi/generate.go8
-rw-r--r--pkg/domain/infra/tunnel/generate.go3
-rw-r--r--pkg/systemd/generate/containers.go30
-rw-r--r--pkg/systemd/generate/containers_test.go27
-rw-r--r--pkg/systemd/generate/pods.go49
-rw-r--r--pkg/systemd/generate/pods_test.go9
10 files changed, 190 insertions, 77 deletions
diff --git a/pkg/api/handlers/libpod/generate.go b/pkg/api/handlers/libpod/generate.go
index 966874a2b..33bb75391 100644
--- a/pkg/api/handlers/libpod/generate.go
+++ b/pkg/api/handlers/libpod/generate.go
@@ -7,10 +7,55 @@ import (
"github.com/containers/podman/v2/pkg/api/handlers/utils"
"github.com/containers/podman/v2/pkg/domain/entities"
"github.com/containers/podman/v2/pkg/domain/infra/abi"
+ "github.com/containers/podman/v2/pkg/util"
"github.com/gorilla/schema"
"github.com/pkg/errors"
)
+func GenerateSystemd(w http.ResponseWriter, r *http.Request) {
+ runtime := r.Context().Value("runtime").(*libpod.Runtime)
+ decoder := r.Context().Value("decoder").(*schema.Decoder)
+ query := struct {
+ Name bool `schema:"useName"`
+ New bool `schema:"new"`
+ RestartPolicy string `schema:"restartPolicy"`
+ StopTimeout uint `schema:"stopTimeout"`
+ ContainerPrefix string `schema:"containerPrefix"`
+ PodPrefix string `schema:"podPrefix"`
+ Separator string `schema:"separator"`
+ }{
+ RestartPolicy: "on-failure",
+ StopTimeout: util.DefaultContainerConfig().Engine.StopTimeout,
+ ContainerPrefix: "container",
+ PodPrefix: "pod",
+ Separator: "-",
+ }
+
+ if err := decoder.Decode(&query, r.URL.Query()); err != nil {
+ utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
+ errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
+ return
+ }
+
+ containerEngine := abi.ContainerEngine{Libpod: runtime}
+ options := entities.GenerateSystemdOptions{
+ Name: query.Name,
+ New: query.New,
+ RestartPolicy: query.RestartPolicy,
+ StopTimeout: &query.StopTimeout,
+ ContainerPrefix: query.ContainerPrefix,
+ PodPrefix: query.PodPrefix,
+ Separator: query.Separator,
+ }
+ report, err := containerEngine.GenerateSystemd(r.Context(), utils.GetName(r), options)
+ if err != nil {
+ utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "error generating systemd units"))
+ return
+ }
+
+ utils.WriteResponse(w, http.StatusOK, report.Units)
+}
+
func GenerateKube(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
decoder := r.Context().Value("decoder").(*schema.Decoder)
diff --git a/pkg/api/server/register_generate.go b/pkg/api/server/register_generate.go
index 7db8ee387..60e5b03f7 100644
--- a/pkg/api/server/register_generate.go
+++ b/pkg/api/server/register_generate.go
@@ -8,6 +8,68 @@ import (
)
func (s *APIServer) registerGenerateHandlers(r *mux.Router) error {
+ // swagger:operation GET /libpod/generate/{name:.*}/systemd libpod libpodGenerateSystemd
+ // ---
+ // tags:
+ // - containers
+ // - pods
+ // summary: Generate Systemd Units
+ // description: Generate Systemd Units based on a pod or container.
+ // parameters:
+ // - in: path
+ // name: name:.*
+ // type: string
+ // required: true
+ // description: Name or ID of the container or pod.
+ // - in: query
+ // name: useName
+ // type: boolean
+ // default: false
+ // description: Use container/pod names instead of IDs.
+ // - in: query
+ // name: new
+ // type: boolean
+ // default: false
+ // description: Create a new container instead of starting an existing one.
+ // - in: query
+ // name: time
+ // type: integer
+ // default: 10
+ // description: Stop timeout override.
+ // - in: query
+ // name: restartPolicy
+ // default: on-failure
+ // type: string
+ // enum: ["no", on-success, on-failure, on-abnormal, on-watchdog, on-abort, always]
+ // description: Systemd restart-policy.
+ // - in: query
+ // name: containerPrefix
+ // type: string
+ // default: container
+ // description: Systemd unit name prefix for containers.
+ // - in: query
+ // name: podPrefix
+ // type: string
+ // default: pod
+ // description: Systemd unit name prefix for pods.
+ // - in: query
+ // name: separator
+ // type: string
+ // default: "-"
+ // description: Systemd unit name separator between name/id and prefix.
+ // produces:
+ // - application/json
+ // responses:
+ // 200:
+ // description: no error
+ // schema:
+ // type: object
+ // additionalProperties:
+ // type: string
+ // 500:
+ // $ref: "#/responses/InternalError"
+ r.HandleFunc(VersionedPath("/libpod/generate/{name:.*}/systemd"), s.APIHandler(libpod.GenerateSystemd)).Methods(http.MethodGet)
+
// swagger:operation GET /libpod/generate/{name:.*}/kube libpod libpodGenerateKube
// ---
// tags:
diff --git a/pkg/bindings/generate/generate.go b/pkg/bindings/generate/generate.go
index b02221765..dde1cc29c 100644
--- a/pkg/bindings/generate/generate.go
+++ b/pkg/bindings/generate/generate.go
@@ -10,6 +10,33 @@ import (
"github.com/containers/podman/v2/pkg/domain/entities"
)
+func Systemd(ctx context.Context, nameOrID string, options entities.GenerateSystemdOptions) (*entities.GenerateSystemdReport, error) {
+ conn, err := bindings.GetClient(ctx)
+ if err != nil {
+ return nil, err
+ }
+ params := url.Values{}
+
+ params.Set("useName", strconv.FormatBool(options.Name))
+ params.Set("new", strconv.FormatBool(options.New))
+ if options.RestartPolicy != "" {
+ params.Set("restartPolicy", options.RestartPolicy)
+ }
+ if options.StopTimeout != nil {
+ params.Set("stopTimeout", strconv.FormatUint(uint64(*options.StopTimeout), 10))
+ }
+ params.Set("containerPrefix", options.ContainerPrefix)
+ params.Set("podPrefix", options.PodPrefix)
+ params.Set("separator", options.Separator)
+
+ response, err := conn.DoRequest(nil, http.MethodGet, "/generate/%s/systemd", params, nil, nameOrID)
+ if err != nil {
+ return nil, err
+ }
+ report := &entities.GenerateSystemdReport{}
+ return report, response.Process(&report.Units)
+}
+
func Kube(ctx context.Context, nameOrID string, options entities.GenerateKubeOptions) (*entities.GenerateKubeReport, error) {
conn, err := bindings.GetClient(ctx)
if err != nil {
diff --git a/pkg/domain/entities/generate.go b/pkg/domain/entities/generate.go
index a8ad13705..4a0d7537e 100644
--- a/pkg/domain/entities/generate.go
+++ b/pkg/domain/entities/generate.go
@@ -4,8 +4,6 @@ import "io"
// GenerateSystemdOptions control the generation of systemd unit files.
type GenerateSystemdOptions struct {
- // Files - generate files instead of printing to stdout.
- Files bool
// Name - use container/pod name instead of its ID.
Name bool
// New - create a new container instead of starting a new one.
@@ -24,9 +22,8 @@ type GenerateSystemdOptions struct {
// GenerateSystemdReport
type GenerateSystemdReport struct {
- // Output of the generate process. Either the generated files or their
- // entire content.
- Output string
+ // Units of the generate process. key = unit name -> value = unit content
+ Units map[string]string
}
// GenerateKubeOptions control the generation of Kubernetes YAML files.
diff --git a/pkg/domain/infra/abi/generate.go b/pkg/domain/infra/abi/generate.go
index 0b73ddd7e..79bf2291e 100644
--- a/pkg/domain/infra/abi/generate.go
+++ b/pkg/domain/infra/abi/generate.go
@@ -19,11 +19,11 @@ func (ic *ContainerEngine) GenerateSystemd(ctx context.Context, nameOrID string,
ctr, ctrErr := ic.Libpod.LookupContainer(nameOrID)
if ctrErr == nil {
// Generate the unit for the container.
- s, err := generate.ContainerUnit(ctr, options)
+ name, content, err := generate.ContainerUnit(ctr, options)
if err != nil {
return nil, err
}
- return &entities.GenerateSystemdReport{Output: s}, nil
+ return &entities.GenerateSystemdReport{Units: map[string]string{name: content}}, nil
}
// If it's not a container, we either have a pod or garbage.
@@ -34,11 +34,11 @@ func (ic *ContainerEngine) GenerateSystemd(ctx context.Context, nameOrID string,
}
// Generate the units for the pod and all its containers.
- s, err := generate.PodUnits(pod, options)
+ units, err := generate.PodUnits(pod, options)
if err != nil {
return nil, err
}
- return &entities.GenerateSystemdReport{Output: s}, nil
+ return &entities.GenerateSystemdReport{Units: units}, nil
}
func (ic *ContainerEngine) GenerateKube(ctx context.Context, nameOrID string, options entities.GenerateKubeOptions) (*entities.GenerateKubeReport, error) {
diff --git a/pkg/domain/infra/tunnel/generate.go b/pkg/domain/infra/tunnel/generate.go
index c7d5cd9e2..966f707b1 100644
--- a/pkg/domain/infra/tunnel/generate.go
+++ b/pkg/domain/infra/tunnel/generate.go
@@ -5,11 +5,10 @@ import (
"github.com/containers/podman/v2/pkg/bindings/generate"
"github.com/containers/podman/v2/pkg/domain/entities"
- "github.com/pkg/errors"
)
func (ic *ContainerEngine) GenerateSystemd(ctx context.Context, nameOrID string, options entities.GenerateSystemdOptions) (*entities.GenerateSystemdReport, error) {
- return nil, errors.New("not implemented for tunnel")
+ return generate.Systemd(ic.ClientCxt, nameOrID, options)
}
func (ic *ContainerEngine) GenerateKube(ctx context.Context, nameOrID string, options entities.GenerateKubeOptions) (*entities.GenerateKubeReport, error) {
diff --git a/pkg/systemd/generate/containers.go b/pkg/systemd/generate/containers.go
index 5f6376977..caf5de357 100644
--- a/pkg/systemd/generate/containers.go
+++ b/pkg/systemd/generate/containers.go
@@ -3,9 +3,7 @@ package generate
import (
"bytes"
"fmt"
- "io/ioutil"
"os"
- "path/filepath"
"sort"
"strings"
"text/template"
@@ -87,17 +85,22 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
// ContainerUnit generates a systemd unit for the specified container. Based
// on the options, the return value might be the entire unit or a file it has
// been written to.
-func ContainerUnit(ctr *libpod.Container, options entities.GenerateSystemdOptions) (string, error) {
+func ContainerUnit(ctr *libpod.Container, options entities.GenerateSystemdOptions) (string, string, error) {
info, err := generateContainerInfo(ctr, options)
if err != nil {
- return "", err
+ return "", "", err
+ }
+ content, err := executeContainerTemplate(info, options)
+ if err != nil {
+ return "", "", err
}
- return executeContainerTemplate(info, options)
+ return info.ServiceName, content, nil
}
func generateContainerInfo(ctr *libpod.Container, options entities.GenerateSystemdOptions) (*containerInfo, error) {
@@ -288,18 +291,5 @@ func executeContainerTemplate(info *containerInfo, options entities.GenerateSyst
return "", err
}
- if !options.Files {
- return buf.String(), nil
- }
-
- buf.WriteByte('\n')
- cwd, err := os.Getwd()
- if err != nil {
- return "", errors.Wrap(err, "error getting current working directory")
- }
- path := filepath.Join(cwd, fmt.Sprintf("%s.service", info.ServiceName))
- if err := ioutil.WriteFile(path, buf.Bytes(), 0644); err != nil {
- return "", errors.Wrap(err, "error generating systemd unit")
- }
- return path, nil
+ return buf.String(), nil
}
diff --git a/pkg/systemd/generate/containers_test.go b/pkg/systemd/generate/containers_test.go
index b5c736c5a..d27062ef3 100644
--- a/pkg/systemd/generate/containers_test.go
+++ b/pkg/systemd/generate/containers_test.go
@@ -56,7 +56,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodName := `# container-foobar.service
# autogenerated by Podman CI
@@ -78,7 +79,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodNameBoundTo := `# container-foobar.service
# autogenerated by Podman CI
@@ -102,7 +104,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodWithNameAndGeneric := `# jadda-jadda.service
# autogenerated by Podman CI
@@ -125,7 +128,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodWithExplicitShortDetachParam := `# jadda-jadda.service
# autogenerated by Podman CI
@@ -148,7 +152,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodNameNewWithPodFile := `# jadda-jadda.service
# autogenerated by Podman CI
@@ -171,7 +176,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodNameNewDetach := `# jadda-jadda.service
# autogenerated by Podman CI
@@ -194,7 +200,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
goodIDNew := `# container-639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401.service
# autogenerated by Podman CI
@@ -217,7 +224,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
tests := []struct {
name string
@@ -375,8 +383,7 @@ WantedBy=multi-user.target default.target`
test := tt
t.Run(tt.name, func(t *testing.T) {
opts := entities.GenerateSystemdOptions{
- Files: false,
- New: test.new,
+ New: test.new,
}
got, err := executeContainerTemplate(&test.info, opts)
if (err != nil) != test.wantErr {
diff --git a/pkg/systemd/generate/pods.go b/pkg/systemd/generate/pods.go
index dec9587d9..c41eedd17 100644
--- a/pkg/systemd/generate/pods.go
+++ b/pkg/systemd/generate/pods.go
@@ -3,9 +3,7 @@ package generate
import (
"bytes"
"fmt"
- "io/ioutil"
"os"
- "path/filepath"
"sort"
"strings"
"text/template"
@@ -88,39 +86,40 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
// PodUnits generates systemd units for the specified pod and its containers.
// Based on the options, the return value might be the content of all units or
// the files they been written to.
-func PodUnits(pod *libpod.Pod, options entities.GenerateSystemdOptions) (string, error) {
+func PodUnits(pod *libpod.Pod, options entities.GenerateSystemdOptions) (map[string]string, error) {
// Error out if the pod has no infra container, which we require to be the
// main service.
if !pod.HasInfraContainer() {
- return "", errors.Errorf("error generating systemd unit files: Pod %q has no infra container", pod.Name())
+ return nil, errors.Errorf("error generating systemd unit files: Pod %q has no infra container", pod.Name())
}
podInfo, err := generatePodInfo(pod, options)
if err != nil {
- return "", err
+ return nil, err
}
infraID, err := pod.InfraContainerID()
if err != nil {
- return "", err
+ return nil, err
}
// Compute the container-dependency graph for the Pod.
containers, err := pod.AllContainers()
if err != nil {
- return "", err
+ return nil, err
}
if len(containers) == 0 {
- return "", errors.Errorf("error generating systemd unit files: Pod %q has no containers", pod.Name())
+ return nil, errors.Errorf("error generating systemd unit files: Pod %q has no containers", pod.Name())
}
graph, err := libpod.BuildContainerGraph(containers)
if err != nil {
- return "", err
+ return nil, err
}
// Traverse the dependency graph and create systemdgen.containerInfo's for
@@ -133,7 +132,7 @@ func PodUnits(pod *libpod.Pod, options entities.GenerateSystemdOptions) (string,
}
ctrInfo, err := generateContainerInfo(ctr, options)
if err != nil {
- return "", err
+ return nil, err
}
// Now add the container's dependencies and at the container as a
// required service of the infra container.
@@ -149,24 +148,23 @@ func PodUnits(pod *libpod.Pod, options entities.GenerateSystemdOptions) (string,
containerInfos = append(containerInfos, ctrInfo)
}
+ units := map[string]string{}
// Now generate the systemd service for all containers.
- builder := strings.Builder{}
out, err := executePodTemplate(podInfo, options)
if err != nil {
- return "", err
+ return nil, err
}
- builder.WriteString(out)
+ units[podInfo.ServiceName] = out
for _, info := range containerInfos {
info.pod = podInfo
- builder.WriteByte('\n')
out, err := executeContainerTemplate(info, options)
if err != nil {
- return "", err
+ return nil, err
}
- builder.WriteString(out)
+ units[info.ServiceName] = out
}
- return builder.String(), nil
+ return units, nil
}
func generatePodInfo(pod *libpod.Pod, options entities.GenerateSystemdOptions) (*podInfo, error) {
@@ -339,18 +337,5 @@ func executePodTemplate(info *podInfo, options entities.GenerateSystemdOptions)
return "", err
}
- if !options.Files {
- return buf.String(), nil
- }
-
- buf.WriteByte('\n')
- cwd, err := os.Getwd()
- if err != nil {
- return "", errors.Wrap(err, "error getting current working directory")
- }
- path := filepath.Join(cwd, fmt.Sprintf("%s.service", info.ServiceName))
- if err := ioutil.WriteFile(path, buf.Bytes(), 0644); err != nil {
- return "", errors.Wrap(err, "error generating systemd unit")
- }
- return path, nil
+ return buf.String(), nil
}
diff --git a/pkg/systemd/generate/pods_test.go b/pkg/systemd/generate/pods_test.go
index 8bf4705a7..7f1f63b7e 100644
--- a/pkg/systemd/generate/pods_test.go
+++ b/pkg/systemd/generate/pods_test.go
@@ -58,7 +58,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
podGoodNamedNew := `# pod-123abc.service
# autogenerated by Podman CI
@@ -84,7 +85,8 @@ KillMode=none
Type=forking
[Install]
-WantedBy=multi-user.target default.target`
+WantedBy=multi-user.target default.target
+`
tests := []struct {
name string
@@ -130,8 +132,7 @@ WantedBy=multi-user.target default.target`
test := tt
t.Run(tt.name, func(t *testing.T) {
opts := entities.GenerateSystemdOptions{
- Files: false,
- New: test.new,
+ New: test.new,
}
got, err := executePodTemplate(&test.info, opts)
if (err != nil) != test.wantErr {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-27 23:03:05 +0000