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feat: add proper parallel support

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This commit is contained in:
Jose Diaz-Gonzalez
2020-11-21 17:31:13 -05:00
parent ef083e6289
commit 28a36c4908
5 changed files with 121 additions and 36 deletions
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20
docs/deployment/process-management.md
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@@ -4,14 +4,14 @@
```
ps:inspect <app> # Displays a sanitized version of docker inspect for an app
ps:rebuild [--parallel count] [--serial] [--all|<app>] # Rebuilds an app from source
ps:rebuild [--parallel count] [--all|<app>] # Rebuilds an app from source
ps:report [<app>] [<flag>] # Displays a process report for one or more apps
ps:restart [--parallel count] [--serial] [--all|<app>] # Restart an app
ps:restart [--parallel count] [--all|<app>] # Restart an app
ps:restore [<app>] # Start previously running apps e.g. after reboot
ps:scale [--skip-deploy] <app> <proc>=<count> [<proc>=<count>...] # Get/Set how many instances of a given process to run
ps:set <app> <key> <value> # Set or clear a ps property for an app
ps:start [--parallel count] [--serial] [--all|<app>] # Start an app
ps:stop [--parallel count] [--serial] [--all|<app>] # Stop an app
ps:start [--parallel count] [--all|<app>] # Start an app
ps:stop [--parallel count] [--all|<app>] # Stop an app
```
By default, Dokku will only start a single `web` process - if defined - though process scaling can be managed by the `ps` plugin or [via a custom `DOKKU_SCALE` file](/docs/deployment/process-management.md#manually-managing-process-scaling).
@@ -43,10 +43,10 @@ dokku ps:rebuild node-js-app
You may also rebuild all applications at once, which is useful when enabling/disabling a plugin that modifies all applications:
```shell
dokku ps:rebuildall
dokku ps:rebuild --all
```
> The `ps:rebuild` and `ps:rebuildall` commands only work for applications for which there is a source, and thus
> The `ps:rebuild` command only works for applications for which there is a source, and thus
> will only always work deterministically for Git-deployed application. Please see
> the [images documentation](/docs/deployment/methods/images.md) and [tar documentation](/docs/deployment/methods/tar.md)
> in for more information concerning rebuilding those applications.
@@ -62,7 +62,7 @@ dokku ps:restart node-js-app
You may also trigger a restart on all applications at one time:
```shell
dokku ps:restartall
dokku ps:restart --all
```
### `ps:scale` command
@@ -104,7 +104,7 @@ dokku ps:stop node-js-app
You may also stop all applications at once:
```shell
dokku ps:stopall
dokku ps:stop --all
```
### Starting applications
@@ -117,12 +117,12 @@ dokku ps:start node-js-app
### Starting all applications
In some cases, it may be necessary to start all applications from scratch - e.g. if all Docker containers have been manually stopped. This can be executed via the `ps:startall` command, which supports parallelism in the same manner `ps:rebuildall`, `ps:restartall`, and `ps:stopall` do.
In some cases, it may be necessary to start all applications from scratch - e.g. if all Docker containers have been manually stopped. This can be executed via the `ps:start` command with the `--all` flag, which supports parallelism - via the `--parallel` flag - in the same manner `ps:rebuild`, `ps:restart`, and `ps:stop` do.
Be aware that no action will be taken if the application containers are running.
```shell
dokku ps:startall
dokku ps:start --all
```
## Restart policies