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Contents
---
title: Docker Hooks
nav_text: Docker
categories: hooks
---
{% include config/hooks/generator.md type="docker" %}
## Docker Hooks
Hook | Description
---|---
build | When kubes builds Docker image.
push | When kubes pushes the Docker image.
Here are some examples of running custom hooks before and after the docker commands.
## Build Hooks
.kubes/config/hooks/docker.rb
```ruby
before("build",
execute: "echo 'docker build before hook'",
)
after("build",
execute: "echo 'docker build after hook'",
)
```
Results in:
$ kubes docker build
Running docker before build hook.
=> echo 'docker build before hook'
docker build before hook
=> docker build -t gcr.io/tung-275700/demo:kubes-2020-10-10T20-06-28-2e80bf4 -f Dockerfile .
Running docker after build hook.
=> echo 'docker build after hook'
docker build after hook
$
## Push Hooks
```ruby
before("push",
execute: "echo 'docker push before hook'",
)
after("push",
execute: "echo 'docker push after hook'",
)
```
Results in:
$ kubes docker push
Running docker before push hook.
=> echo 'docker push before hook'
docker push before hook
=> docker push gcr.io/tung-275700/demo:kubes-2020-10-10T20-06-28-2e80bf4
Running docker after push hook.
=> echo 'docker push after hook'
docker push after hook
$
## exit_on_fail option
By default, if the hook commands fail, then kubes will exit with the original hook error code. You can change this behavior with the `exit_on_fail` option.
```ruby
before("build"
execute: "/command/will/fail/but/will/continue",
exit_on_fail: false,
)
```
{% include config/hooks/options.md command="docker" %}
Version data entries
8 entries across 8 versions & 1 rubygems