Merge pull request #5427 from containers/systemd-default

generate systemd: add `default.target` to INSTALL

docs/source/markdown/podman-generate-systemd.1.md

@@ -42,8 +42,8 @@ Create and print a systemd unit file for a container running nginx with an *alwa
 $ podman create --name nginx nginx:latest
 $ podman generate systemd --restart-policy=always -t 1 nginx
 # container-de1e3223b1b888bc02d0962dd6cb5855eb00734061013ffdd3479d225abacdc6.service
-# autogenerated by Podman 1.5.2
-# Wed Aug 21 09:46:45 CEST 2019
+# autogenerated by Podman 1.8.0
+# Wed Mar 09 09:46:45 CEST 2020
 
 [Unit]
 Description=Podman container-de1e3223b1b888bc02d0962dd6cb5855eb00734061013ffdd3479d225abacdc6.service
@@ -58,7 +58,7 @@ Type=forking
 PIDFile=/run/user/1000/overlay-containers/de1e3223b1b888bc02d0962dd6cb5855eb00734061013ffdd3479d225abacdc6/userdata/conmon.pid
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=multi-user.target default.target
 ```
 
 Create systemd unit files for a pod with two simple alpine containers. Note that these container services cannot be started or stopped individually via `systemctl`; they are managed by the pod service. You can still use `systemctl status` or journalctl to examine them.
@@ -72,8 +72,8 @@ $ podman generate systemd --files --name systemd-pod
 /home/user/container-jolly_shtern.service
 $ cat pod-systemd-pod.service
 # pod-systemd-pod.service
-# autogenerated by Podman 1.5.2
-# Wed Aug 21 09:52:37 CEST 2019
+# autogenerated by Podman 1.8.0
+# Wed Mar 09 09:52:37 CEST 2020
 
 [Unit]
 Description=Podman pod-systemd-pod.service
@@ -90,7 +90,7 @@ Type=forking
 PIDFile=/run/user/1000/overlay-containers/ccfd5c71a088768774ca7bd05888d55cc287698dde06f475c8b02f696a25adcd/userdata/conmon.pid
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=multi-user.target default.target
 ```
 
 ## SEE ALSO

docs/tutorials/rootless_tutorial.md

@@ -110,34 +110,6 @@ The Podman configuration files for root reside in `/usr/share/containers` with o
 
 The default authorization file used by the `podman login` and `podman logout` commands reside in `${XDG_RUNTIME_DIR}/containers/auth.json`.
 
-## Systemd unit for rootless container
-
-```
-[Unit]
-Description=nginx
-Requires=user@1001.service
-After=user@1001.service
-[Service]
-Type=simple
-KillMode=none
-MemoryMax=200M
-ExecStartPre=-/usr/bin/podman rm -f nginx
-ExecStartPre=/usr/bin/podman pull nginx
-ExecStart=/usr/bin/podman run --name=nginx -p 8080:80 -v /home/nginx/html:/usr/share/nginx/html:Z nginx
-ExecStop=/usr/bin/podman stop nginx
-Restart=always
-User=nginx
-Group=nginx
-[Install]
-WantedBy=multi-user.target
-```
-
-This example unit will launch a nginx container using the existing user nginx with id 1001, serving static content from /home/nginx/html and limited to 200MB of RAM.
-
-You can use all the usual systemd flags to control the process, including capabilities and cgroup directives to limit memory or CPU.
-
-See #3866 for more details.
-
 ## More information
 
 If you are still experiencing problems running Podman in a rootless environment, please refer to the [Shortcomings of Rootless Podman](https://github.com/containers/libpod/blob/master/rootless.md) page which lists known issues and solutions to known issues in this environment.

pkg/systemd/generate/systemdgen.go

@@ -110,7 +110,7 @@ KillMode=none
 Type=forking
 
 [Install]
-WantedBy=multi-user.target`
+WantedBy=multi-user.target default.target`
 
 // Options include different options to control the unit file generation.
 type Options struct {

pkg/systemd/generate/systemdgen_test.go

@@ -52,7 +52,7 @@ KillMode=none
 Type=forking
 
 [Install]
-WantedBy=multi-user.target`
+WantedBy=multi-user.target default.target`
 
 	goodName := `# container-foobar.service
 # autogenerated by Podman CI
@@ -72,7 +72,7 @@ KillMode=none
 Type=forking
 
 [Install]
-WantedBy=multi-user.target`
+WantedBy=multi-user.target default.target`
 
 	goodNameBoundTo := `# container-foobar.service
 # autogenerated by Podman CI
@@ -96,7 +96,7 @@ KillMode=none
 Type=forking
 
 [Install]
-WantedBy=multi-user.target`
+WantedBy=multi-user.target default.target`
 
 	podGoodName := `# pod-123abc.service
 # autogenerated by Podman CI
@@ -118,7 +118,7 @@ KillMode=none
 Type=forking
 
 [Install]
-WantedBy=multi-user.target`
+WantedBy=multi-user.target default.target`
 
 	goodNameNew := `# jadda-jadda.service
 # autogenerated by Podman CI
@@ -140,7 +140,7 @@ KillMode=none
 Type=forking
 
 [Install]
-WantedBy=multi-user.target`
+WantedBy=multi-user.target default.target`
 
 	tests := []struct {
 		name    string