kubernetes-bootstrap
v0.5.0-1
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Tool for processing a set of (mustache) templates into a kubernetes cluster
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kubernetes-bootstrap
Tool for processing a set of (mustache) templates into a kubernetes cluster
Features
- Mustache templates
- Multi-level settings (override version-controlled configuration with local configuration, and that with command line arguments)
- Somewhat intelligent handling of errors
- Support for Third-Party Resources
Installation
npm install -g kubernetes-bootstrap
Usage
kubernetes-bootstrap processes a directory containing mustache templates that create kubernetes manifests.
Assume this directory structure:
deploy.yaml
deploy.yaml.override
templates/
app/
db.yml
app.yml
infrastructure/
lb.yml
aws/
aws-resource.yml
minikube/
aws-resource.yml
You can use kubernetes-bootstrap
to process these templates and apply them to a kubernetes cluster:
kubernetes-bootstrap --template-dir templates -x aws
Any template parameters in the templates will be resolved against the contents of deploy.yaml
. deploy.yaml
must minimally contain the 'environment' field:
environment: my-nice-environment
This field is used by kubernetes-bootstrap
to create a namespace. All resources from the template directory are then apply-ed into this namespace.
Advanced Usage
kubernetes-bootstrap
supports multiple "strategies" when applying resources. These can be selected per-resource through the bootstrap.k8s.collaborne.com/strategy
annotation, and through the --default-strategy
command-line argument.
| Strategy | Behavior
| -------- | --------
| legacy
| Try to PATCH resources, and if that doesn't work fall back to replacing them using an UPDATE.
| smart
| Use UPDATE for most resources, and PATCH for specific kinds only (v1.Service
, v1.ConfigMap
, v1.Secret
, see SMART_PATCH_KINDS
in bootstrap.js)
Additionally it is possible to build a custom strategy by setting the strategy to comma-separated list of create
, patch
, update
, fail
, and skip
.
See the source and kubernetes-bootstrap --help
for more information.
License
This software is licensed under the Apache 2 license, quoted below.
Copyright 2017-2019 Collaborne B.V. <http://github.com/Collaborne/>
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.