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Commit 9bf646baa419 authored by Florent Aide's avatar Florent Aide
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better README

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## Features
- template engine:
- [helm](https://helm.sh/)
- [ytt](https://carvel.dev/ytt/)
- [helm](https://helm.sh/) charts
- [ytt](https://carvel.dev/ytt/) charts
- [kubectl create](https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#create)
- [kustomize](https://kustomize.io)
- patch engine:
- [ytt overlay](https://carvel.dev/ytt/docs/v0.39.0/ytt-overlays/)
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- [kubectl create](https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#create)
- [kustomize](https://kustomize.io)
- patch engine:
- [ytt overlay](https://carvel.dev/ytt/docs/v0.39.0/ytt-overlays/)
- multi environment variables
- [kustomize](https://kustomize.io)
- multi-environment variables
- sha256 sum for any compiled resource can be used as variable
- inheritance between `beaver` project
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- sha256 sum for any compiled resource can be used as variable
- inheritance between `beaver` project
- each built resource is output inside it's own file
- each built resource outputs its own file
## Usage
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```yaml
# Default namespace used for this project
namespace: default
# the desired beaver version. If the binary you use to process this file has a different
# version number, it will fail to avoid messing your resources.
# the desired beaver version. If the binary you use to process this file has a
# different version number, it will refuse to process the project to avoid
# messing with your resources.
beaverversion: 3.2.3
# an inherited beaver project - which can also inherit another beaver project
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beaverversion: 3.2.3
# an inherited beaver project - which can also inherit another beaver project
# when starting your first beaver project you create a base file without inherit
# then you create some other file that inherits from your base to reflect
# some kind of environment change (production vs dev)
inherit: ../../base # path is relative to this beaver config file
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inherit: ../../base # path is relative to this beaver config file
# you can also inherit from multiple bases at the same time
inherits:
- ../../base1
- ../../base2
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inherits:
- ../../base1
- ../../base2
# a beaver project is essentially a collection of charts (either helm or ytt)
# your project charts
charts:
postgres: # your chart local name
type: helm # can be either helm or ytt
path: ../.vendor/helm/postgresql # path to your chart - relative to this file
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# your project charts
charts:
postgres: # your chart local name
type: helm # can be either helm or ytt
path: ../.vendor/helm/postgresql # path to your chart - relative to this file
name: pgsql # overwrite **helm** application name
name: pgsql # overwrite **helm** application name, cannot be used for ytt charts
# Keyword `namespace` only available for Helm charts
namespace: my-namespace # Set namespace only for the current chart(Optional)
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# Keyword `namespace` only available for Helm charts
namespace: my-namespace # Set namespace only for the current chart(Optional)
# beaver variables that can be used inside your charts value files
# They are two methods
# You can define beaver variables
# they can be used inside your charts value files
# There are two methods
# First method :
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# First method :
# this method was the original one and is here for historical reasons
# but we highly recommend you use the second method which is nicer and
# will lead to better templates
variables:
- name: tag # give your variable a name
value: v1.2.3 # and a value
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variables:
- name: tag # give your variable a name
value: v1.2.3 # and a value
# Second method :
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# Second method :
# which is the recommended way to go (implemented later)
variables:
tag: v1.2.3
my_dict1:
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my_list:
- elem1
- elem2
# You can also use inherit to overlay variables
# in project/base1/beaver.yaml :
variables:
my_dict:
key1: value1
key2: value2
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# You can also use inherit to overlay variables
# in project/base1/beaver.yaml :
variables:
my_dict:
key1: value1
key2: value2
# If you want to redefine all dict
# If you want to redefine all the dict
# in project/base2/beaver.yaml :
inherit: ../base1
variables:
my_dict:
newKey1: value3
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# in project/base2/beaver.yaml :
inherit: ../base1
variables:
my_dict:
newKey1: value3
# Or if you want to redifine part of dict
# Or if you want to redefine only part of the dict
inherit: ../base1
variables:
my_dict.key1: value3
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inherit: ../base1
variables:
my_dict.key1: value3
# result of dict :
# resulting dict :
variables:
my_dict:
key1:value3
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sha:
- key: configmap_demo # use to generate beaver variable name
resource: ConfigMap.v1.demo.yaml # compiled resource filename
# create some resources using `kubectl create`
create:
- type: configmap # resource kind as passed to kubectl create
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## Value files
Value files filename use the following format:
Value files filename uses the following format:
```
<chart_local_name>.[yaml,yml]
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value: true
```
and another file that inherits from this base and want to have this chart enabled
and another file that inherits from this base and wants to have this chart enabled
```yaml
# example/configmapenabled/beaver.yml
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This can be used to allow for options in some inheritance cases where you want to enable/disable a certain backend like
a Redis server, a Postgresql server.
Your base provides the diverse options and your inheritance will pick the ones they need.
Your base provides the different options and your inheritance will pick the ones they need.
## Output files
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