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refactor: implement most of ps plugin in golang

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This commit is contained in:
Jose Diaz-Gonzalez
2020-11-01 15:53:53 -05:00
parent c72bbf41ea
commit e7ee7a1781
48 changed files with 1227 additions and 676 deletions
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60
docs/deployment/process-management.md
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@@ -8,10 +8,9 @@ ps:rebuild <app> # Rebuild an app from source
ps:rebuildall # Rebuild all apps from source
ps:report [<app>] [<flag>] # Displays a process report for one or more apps
ps:restart <app> # Restart app container(s)
ps:restart-policy <app> # Shows the restart-policy for an app
ps:restartall # Restart all deployed app containers
ps:scale <app> <proc>=<count> [<proc>=<count>] # Get/Set how many instances of a given process to run
ps:set-restart-policy <app> <policy> # Sets app restart-policy
ps:set <app> <key> <value> # Set or clear a ps property for an app
ps:start <app> # Start app container(s)
ps:startall # Start all deployed app containers
ps:stop <app> # Stop app container(s)
@@ -133,68 +132,29 @@ dokku ps:startall
> New as of 0.7.0
By default, Dokku will automatically restart containers that exit with a non-zero status up to 10 times via the [on-failure Docker restart policy](https://docs.docker.com/engine/reference/run/#restart-policies-restart).
### Showing the current restart policy
The `ps:restart-policy` command will show the currently configured restart policy for an application. The default policy is `on-failure:10`
```shell
dokku ps:restart-policy node-js-app
```
```
=====> node-js-app restart-policy:
on-failure:10
```
By default, Dokku will automatically restart containers that exit with a non-zero status up to 10 times via the [on-failure Docker restart policy](https://docs.docker.com/engine/reference/run/#restart-policies---restart).
### Setting the restart policy
You can configure this via the `ps:set-restart-policy` command:
> A change in the restart policy must be followed by a `ps:rebuild` call.
You can configure this via the `ps:set` command:
```shell
# always restart an exited container
dokku ps:set-restart-policy node-js-app always
```
dokku ps:set node-js-app restart-policy always
```
-----> Setting restart policy: always
```
```shell
# never restart an exited container
dokku ps:set-restart-policy node-js-app no
```
dokku ps:set node-js-app restart-policy no
```
-----> Setting restart policy: no
```
```shell
# only restart it on Docker restart if it was not manually stopped
dokku ps:set-restart-policy node-js-app unless-stopped
```
dokku ps:set node-js-app restart-policy unless-stopped
```
-----> Setting restart policy: unless-stopped
```
```shell
# restart only on non-zero exit status
dokku ps:set-restart-policy node-js-app on-failure
```
dokku ps:set node-js-app restart-policy on-failure
```
-----> Setting restart policy: on-failure
```
```shell
# restart only on non-zero exit status up to 20 times
dokku ps:set-restart-policy node-js-app on-failure:20
```
```
-----> Setting restart policy: on-failure:20
dokku ps:set node-js-app restart-policy on-failure:20
```
Restart policies have no bearing on server reboot, and Dokku will always attempt to restart your applications at that point unless they were manually stopped.