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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2019-07-08 23:39:42 +0200
committerGitHub <noreply@github.com>2019-07-08 23:39:42 +0200
commitfce2e6577e8a6be153c45f4d732fb0fcc3c95a4a (patch)
tree62a3d6ec343bba742e159a5514e8a64e6e8baf99
parent8d37c2073f774d7f7e708cdb8c24f07c87e83587 (diff)
parent2bfade4391bb6d247ddab2d129d0529471c17063 (diff)
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Merge pull request #3497 from QazerLab/bugfix/systemd-generate-pidfile
Use conmon pidfile in generated systemd unit as PIDFile.
-rw-r--r--docs/podman-generate-systemd.1.md4
-rw-r--r--libpod/runtime_ctr.go2
-rw-r--r--pkg/adapter/containers.go9
-rw-r--r--pkg/systemdgen/systemdgen.go28
-rw-r--r--pkg/systemdgen/systemdgen_test.go18
-rw-r--r--test/system/250-generate-systemd.bats46
-rw-r--r--test/system/helpers.bash11
7 files changed, 101 insertions, 17 deletions
diff --git a/docs/podman-generate-systemd.1.md b/docs/podman-generate-systemd.1.md
index 09752480d..64e68a69a 100644
--- a/docs/podman-generate-systemd.1.md
+++ b/docs/podman-generate-systemd.1.md
@@ -39,7 +39,7 @@ ExecStart=/usr/bin/podman start c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f14
ExecStop=/usr/bin/podman stop -t 10 c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc
KillMode=none
Type=forking
-PIDFile=/var/lib/containers/storage/overlay-containers/c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc/userdata/c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc.pid
+PIDFile=/var/run/containers/storage/overlay-containers/c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc/userdata/conmon.pid
[Install]
WantedBy=multi-user.target
```
@@ -55,7 +55,7 @@ ExecStart=/usr/bin/podman start c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f14
ExecStop=/usr/bin/podman stop -t 1 c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc
KillMode=none
Type=forking
-PIDFile=/var/lib/containers/storage/overlay-containers/c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc/userdata/c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc.pid
+PIDFile=/var/run/containers/storage/overlay-containers/c21da63c4783be2ac2cd3487ef8d2ec15ee2a28f63dd8f145e3b05607f31cffc/userdata/conmon.pid
[Install]
WantedBy=multi-user.target
```
diff --git a/libpod/runtime_ctr.go b/libpod/runtime_ctr.go
index 633d26fe1..ae9b3e5bc 100644
--- a/libpod/runtime_ctr.go
+++ b/libpod/runtime_ctr.go
@@ -237,7 +237,7 @@ func (r *Runtime) setupContainer(ctx context.Context, ctr *Container) (c *Contai
}
}()
- if rootless.IsRootless() && ctr.config.ConmonPidFile == "" {
+ if ctr.config.ConmonPidFile == "" {
ctr.config.ConmonPidFile = filepath.Join(ctr.state.RunDir, "conmon.pid")
}
diff --git a/pkg/adapter/containers.go b/pkg/adapter/containers.go
index 10720886b..0ea89a72c 100644
--- a/pkg/adapter/containers.go
+++ b/pkg/adapter/containers.go
@@ -1058,7 +1058,14 @@ func (r *LocalRuntime) GenerateSystemd(c *cliconfig.GenerateSystemdValues) (stri
if c.Name {
name = ctr.Name()
}
- return systemdgen.CreateSystemdUnitAsString(name, ctr.ID(), c.RestartPolicy, ctr.Config().StaticDir, timeout)
+
+ config := ctr.Config()
+ conmonPidFile := config.ConmonPidFile
+ if conmonPidFile == "" {
+ return "", errors.Errorf("conmon PID file path is empty, try to recreate the container with --conmon-pidfile flag")
+ }
+
+ return systemdgen.CreateSystemdUnitAsString(name, ctr.ID(), c.RestartPolicy, conmonPidFile, timeout)
}
// GetNamespaces returns namespace information about a container for PS
diff --git a/pkg/systemdgen/systemdgen.go b/pkg/systemdgen/systemdgen.go
index 3d1c31b5d..06c5ebde5 100644
--- a/pkg/systemdgen/systemdgen.go
+++ b/pkg/systemdgen/systemdgen.go
@@ -2,17 +2,18 @@ package systemdgen
import (
"fmt"
- "path/filepath"
+ "os"
"github.com/pkg/errors"
+ "github.com/sirupsen/logrus"
)
var template = `[Unit]
Description=%s Podman Container
[Service]
Restart=%s
-ExecStart=/usr/bin/podman start %s
-ExecStop=/usr/bin/podman stop -t %d %s
+ExecStart=%s start %s
+ExecStop=%s stop -t %d %s
KillMode=none
Type=forking
PIDFile=%s
@@ -33,11 +34,26 @@ func ValidateRestartPolicy(restart string) error {
// CreateSystemdUnitAsString takes variables to create a systemd unit file used to control
// a libpod container
-func CreateSystemdUnitAsString(name, cid, restart, pidPath string, stopTimeout int) (string, error) {
+func CreateSystemdUnitAsString(name, cid, restart, pidFile string, stopTimeout int) (string, error) {
+ podmanExe := getPodmanExecutable()
+ return createSystemdUnitAsString(podmanExe, name, cid, restart, pidFile, stopTimeout)
+}
+
+func createSystemdUnitAsString(exe, name, cid, restart, pidFile string, stopTimeout int) (string, error) {
if err := ValidateRestartPolicy(restart); err != nil {
return "", err
}
- pidFile := filepath.Join(pidPath, fmt.Sprintf("%s.pid", cid))
- unit := fmt.Sprintf(template, name, restart, name, stopTimeout, name, pidFile)
+
+ unit := fmt.Sprintf(template, name, restart, exe, name, exe, stopTimeout, name, pidFile)
return unit, nil
}
+
+func getPodmanExecutable() string {
+ podmanExe, err := os.Executable()
+ if err != nil {
+ podmanExe = "/usr/bin/podman"
+ logrus.Warnf("Could not obtain podman executable location, using default %s", podmanExe)
+ }
+
+ return podmanExe
+}
diff --git a/pkg/systemdgen/systemdgen_test.go b/pkg/systemdgen/systemdgen_test.go
index f2f49e750..e413b24ce 100644
--- a/pkg/systemdgen/systemdgen_test.go
+++ b/pkg/systemdgen/systemdgen_test.go
@@ -41,7 +41,7 @@ ExecStart=/usr/bin/podman start 639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4
ExecStop=/usr/bin/podman stop -t 10 639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401
KillMode=none
Type=forking
-PIDFile=/var/lib/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401.pid
+PIDFile=/var/run/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/conmon.pid
[Install]
WantedBy=multi-user.target`
@@ -53,15 +53,16 @@ ExecStart=/usr/bin/podman start foobar
ExecStop=/usr/bin/podman stop -t 10 foobar
KillMode=none
Type=forking
-PIDFile=/var/lib/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401.pid
+PIDFile=/var/run/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/conmon.pid
[Install]
WantedBy=multi-user.target`
type args struct {
+ exe string
name string
cid string
restart string
- pidPath string
+ pidFile string
stopTimeout int
}
tests := []struct {
@@ -73,10 +74,11 @@ WantedBy=multi-user.target`
{"good with id",
args{
+ "/usr/bin/podman",
"639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401",
"639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401",
"always",
- "/var/lib/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/",
+ "/var/run/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/conmon.pid",
10,
},
goodID,
@@ -84,10 +86,11 @@ WantedBy=multi-user.target`
},
{"good with name",
args{
+ "/usr/bin/podman",
"foobar",
"639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401",
"always",
- "/var/lib/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/",
+ "/var/run/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/conmon.pid",
10,
},
goodName,
@@ -95,10 +98,11 @@ WantedBy=multi-user.target`
},
{"bad restart policy",
args{
+ "/usr/bin/podman",
"639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401",
"639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401",
"never",
- "/var/lib/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/",
+ "/var/run/containers/storage/overlay-containers/639c53578af4d84b8800b4635fa4e680ee80fd67e0e6a2d4eea48d1e3230f401/userdata/conmon.pid",
10,
},
"",
@@ -107,7 +111,7 @@ WantedBy=multi-user.target`
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
- got, err := CreateSystemdUnitAsString(tt.args.name, tt.args.cid, tt.args.restart, tt.args.pidPath, tt.args.stopTimeout)
+ got, err := createSystemdUnitAsString(tt.args.exe, tt.args.name, tt.args.cid, tt.args.restart, tt.args.pidFile, tt.args.stopTimeout)
if (err != nil) != tt.wantErr {
t.Errorf("CreateSystemdUnitAsString() error = %v, wantErr %v", err, tt.wantErr)
return
diff --git a/test/system/250-generate-systemd.bats b/test/system/250-generate-systemd.bats
new file mode 100644
index 000000000..80199af5f
--- /dev/null
+++ b/test/system/250-generate-systemd.bats
@@ -0,0 +1,46 @@
+#!/usr/bin/env bats -*- bats -*-
+#
+# Tests generated configurations for systemd.
+#
+
+load helpers
+
+# Be extra paranoid in naming to avoid collisions.
+SERVICE_NAME="podman_test_$(random_string)"
+UNIT_DIR="$HOME/.config/systemd/user"
+UNIT_FILE="$UNIT_DIR/$SERVICE_NAME.service"
+
+function setup() {
+ skip_if_not_systemd
+ skip_if_remote
+
+ basic_setup
+
+ if [ ! -d "$UNIT_DIR" ]; then
+ mkdir -p "$UNIT_DIR"
+ systemctl --user daemon-reload
+ fi
+}
+
+function teardown() {
+ rm -f "$UNIT_FILE"
+ systemctl --user stop "$SERVICE_NAME"
+ basic_teardown
+}
+
+@test "podman generate - systemd - basic" {
+ run_podman create $IMAGE echo "I'm alive!"
+ cid="$output"
+
+ run_podman generate systemd $cid > "$UNIT_FILE"
+
+ run systemctl --user start "$SERVICE_NAME"
+ if [ $status -ne 0 ]; then
+ die "The systemd service $SERVICE_NAME did not start correctly, output: $output"
+ fi
+
+ run_podman logs $cid
+ is "$output" "I'm alive!" "Container output"
+}
+
+# vim: filetype=sh
diff --git a/test/system/helpers.bash b/test/system/helpers.bash
index 29ef19ecc..1db80f111 100644
--- a/test/system/helpers.bash
+++ b/test/system/helpers.bash
@@ -236,6 +236,17 @@ function skip_if_remote() {
skip "${1:-test does not work with podman-remote}"
}
+#########################
+# skip_if_not_systemd # ...with an optional message
+#########################
+function skip_if_not_systemd() {
+ if systemctl --user >/dev/null 2>&1; then
+ return
+ fi
+
+ skip "${1:-no systemd or daemon does not respond}"
+}
+
#########
# die # Abort with helpful message
#########