143 lines
3.9 KiB
Markdown
143 lines
3.9 KiB
Markdown
# ProvsK3sBuild
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Sets up a single-node k3s cluster using provs.
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```mermaid
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classDiagram
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class ProvsK3sBuild {
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update_runtime_config(dns_record) - after applying terraform update the dns records
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provs_apply(dry_run=False) - run provs
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write_provs_config() - generate the provs config
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}
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```
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## Input
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| name | description | default |
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| ----------------------------- | ----------------------------------------------------------------- | --------- |
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| k3s_provision_user | the user used to provision k3s | "root" |
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| k3s_letsencrypt_email | email address used for letsencrypt | |
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| k3s_letsencrypt_endpoint | letsencrypt endpoint. Valid values are staging, prod | "staging" |
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| k3s_app_filename_to_provision | an k8s manifest to apply imediately after k3s setup was sucessful | |
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| k3s_enable_echo | provision the echo app on k3s. Valid values are true, false | "false" |
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| k3s_provs_template | use a individual template for provs config | None |
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### Credentials Mapping defaults
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```python
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[]
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```
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## Example Usage
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### build.py
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```python
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from os import environ
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from pybuilder.core import task, init
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from ddadevops import *
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name = 'my-project'
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MODULE = 'my-module'
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PROJECT_ROOT_PATH = '..'
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class MyBuild(DevopsTerraformBuild, ProvsK3sBuild):
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pass
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@init
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def initialize(project):
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project.build_depends_on("ddadevops>=4.0.0")
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stage = environ["STAGE"]
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if stage == "test":
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tmp_letsencrypt_endpoint = "staging"
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elif stage == "prod":
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tmp_letsencrypt_endpoint = "prod"
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config = {
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"credentials_mapping": [
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{
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"gopass_path": environ.get("DIGITALOCEAN_TOKEN_KEY_PATH", None),
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"name": "do_api_key",
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},
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{
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"gopass_path": environ.get("HETZNER_API_KEY_PATH", None),
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"name": "hetzner_api_key",
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},
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],
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"name": name,
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"module": MODULE,
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"stage": stage,
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"project_root_path": PROJECT_ROOT_PATH,
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"build_types": ["TERRAFORM", "C4K", "K3S"],
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"mixin_types": [],
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"tf_provider_types": ["DIGITALOCEAN", "HETZNER"],
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"tf_use_workspace": False,
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"tf_terraform_semantic_version": "1.4.2",
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"do_as_backend": True,
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"do_bucket": "my-configuration",
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"k3s_app_filename_to_provision": "my_k8s_application_manifest.yaml",
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"k3s_letsencrypt_endpoint": tmp_letsencrypt_endpoint,
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"k3s_letsencrypt_email": "admin@my.doamin",
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}
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build = MyBuild(project, config)
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build.initialize_build_dir()
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@task
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def plan(project):
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build = get_devops_build(project)
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build.plan()
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@task
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def tf_apply(project):
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build = get_devops_build(project)
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build.apply(True)
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@task
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def show_config(project):
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build = get_devops_build(project)
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build.apply(True)
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out_json = build.read_output_json()
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build.update_runtime_config(
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DnsRecord(
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fqdn=out_json["fqdn"]["value"],
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ipv4=out_json["ipv4"]["value"],
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ipv6=out_json["ipv6"]["value"],
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)
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)
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build.write_provs_config()
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build.provs_apply(dry_run=True)
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@task
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def apply(project):
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build = get_devops_build(project)
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build.apply(True)
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out_json = build.read_output_json()
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build.update_runtime_config(
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DnsRecord(
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fqdn=out_json["fqdn"]["value"],
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ipv4=out_json["ipv4"]["value"],
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ipv6=out_json["ipv6"]["value"],
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)
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)
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build.write_provs_config()
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time.sleep(5)
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build.provs_apply()
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@task
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def destroy(project):
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build = get_devops_build(project)
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build.destroy(True)
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```
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### call the build
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```bash
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pyb apply
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```
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