add base charms and workflows

.github/workflows/kepler.yaml

@@ -0,0 +1,47 @@
+name: kepler
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/kepler.yaml
+      - kepler/**
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  pack-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      - name: Set up uv
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
+      - name: Set up tox and tox-uv
+        run: uv tool install tox --with tox-uv
+      - name: Lint
+        working-directory: kepler
+        run: |
+          uvx --python 3.10 --with tox-uv tox -e lint
+      - name: Run unit tests
+        working-directory: kepler
+        run: |
+          uvx --python 3.10 --with tox-uv tox -e unit
+      - name: Set up Concierge
+        run: sudo snap install --classic concierge
+      - name: Set up Juju and charm development tools
+        run: sudo concierge prepare -p k8s
+      - name: Pack the charm
+        working-directory: kepler
+        run: charmcraft pack
+      - name: Run integration tests
+        working-directory: kepler
+        run: tox -e integration -- --juju-dump-logs logs
+      - name: Upload logs
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v7
+        with:
+          name: juju-dump-logs
+          path: kepler/logs

.github/workflows/kosmos.yaml

@@ -0,0 +1,47 @@
+name: kosmos
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/kosmos.yaml
+      - kosmos/**
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  pack-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      - name: Set up uv
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
+      - name: Set up tox and tox-uv
+        run: uv tool install tox --with tox-uv
+      - name: Lint
+        working-directory: kosmos
+        run: |
+          uvx --python 3.10 --with tox-uv tox -e lint
+      - name: Run unit tests
+        working-directory: kosmos
+        run: |
+          uvx --python 3.10 --with tox-uv tox -e unit
+      - name: Set up Concierge
+        run: sudo snap install --classic concierge
+      - name: Set up Juju and charm development tools
+        run: sudo concierge prepare -p k8s
+      - name: Pack the charm
+        working-directory: kosmos
+        run: charmcraft pack
+      - name: Run integration tests
+        working-directory: kosmos
+        run: tox -e integration -- --juju-dump-logs logs
+      - name: Upload logs
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v7
+        with:
+          name: juju-dump-logs
+          path: kosmos/logs

.github/workflows/charm-pydantic-minimal.yaml → .github/workflows/meteor.yaml

@@ -1,17 +1,16 @@
-name: Charm with minimal use of Pydantic
+name: meteor
 
 on:
   pull_request:
     paths:
-      - .github/workflows/charm-pydantic-minimal.yaml
-      - charms/pydantic-minimal/**
+      - .github/workflows/meteor.yaml
+      - meteor/**
   workflow_dispatch:
 
 permissions: {}
 
 jobs:
   pack-and-test:
-    name: Test the charm
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -22,23 +21,27 @@ jobs:
         uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
       - name: Set up tox and tox-uv
         run: uv tool install tox --with tox-uv
-      - name: Lint and run unit tests
-        working-directory: charms/pydantic-minimal
+      - name: Lint
+        working-directory: meteor
         run: |
-          uvx --python 3.10 --with tox-uv tox -e lint,unit
+          uvx --python 3.10 --with tox-uv tox -e lint
+      - name: Run unit tests
+        working-directory: meteor
+        run: |
+          uvx --python 3.10 --with tox-uv tox -e unit
       - name: Set up Concierge
         run: sudo snap install --classic concierge
       - name: Set up Juju and charm development tools
         run: sudo concierge prepare -p machine
       - name: Pack the charm
-        working-directory: charms/pydantic-minimal
+        working-directory: meteor
         run: charmcraft pack
       - name: Run integration tests
-        working-directory: charms/pydantic-minimal
+        working-directory: meteor
         run: tox -e integration -- --juju-dump-logs logs
       - name: Upload logs
         if: ${{ !cancelled() }}
         uses: actions/upload-artifact@v7
         with:
           name: juju-dump-logs
-          path: charms/pydantic-minimal/logs
+          path: meteor/logs

.github/workflows/charmcraft-main-machine.yaml → .github/workflows/micron.yaml

@@ -1,16 +1,16 @@
-name: Charmcraft main's machine profile
+name: micron
 
 on:
   pull_request:
     paths:
-      - .github/workflows/charmcraft-main-machine.yaml
+      - .github/workflows/micron.yaml
+      - micron/**
   workflow_dispatch:
 
 permissions: {}
 
 jobs:
-  generate-and-test:
-    name: Test a generated charm
+  pack-and-test:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -19,33 +19,29 @@ jobs:
           persist-credentials: false
       - name: Set up uv
         uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
-      - name: Generate a charm
-        run: |
-          mkdir -p charms/myapp-machine
-          uvx git+https://github.com/canonical/charmcraft init \
-            --profile machine \
-            --project-dir charms/myapp-machine \
-            --author Charmer
       - name: Set up tox and tox-uv
         run: uv tool install tox --with tox-uv
-      - name: Lock, lint, and run unit tests
-        working-directory: charms/myapp-machine
+      - name: Lint
+        working-directory: micron
+        run: |
+          uvx --python 3.10 --with tox-uv tox -e lint
+      - name: Run unit tests
+        working-directory: micron
         run: |
-          uv lock
-          uvx --python 3.10 --with tox-uv tox -e lint,unit
+          uvx --python 3.10 --with tox-uv tox -e unit
       - name: Set up Concierge
         run: sudo snap install --classic concierge
       - name: Set up Juju and charm development tools
         run: sudo concierge prepare -p machine
       - name: Pack the charm
-        working-directory: charms/myapp-machine
+        working-directory: micron
         run: charmcraft pack
       - name: Run integration tests
-        working-directory: charms/myapp-machine
+        working-directory: micron
         run: tox -e integration -- --juju-dump-logs logs
       - name: Upload logs
         if: ${{ !cancelled() }}
         uses: actions/upload-artifact@v7
         with:
           name: juju-dump-logs
-          path: charms/myapp-machine/logs
+          path: micron/logs

.github/workflows/zizmor.yaml

@@ -1,4 +1,4 @@
-name: Workflow checks
+name: zizmor
 
 on:
   pull_request:

kepler/charmcraft.yaml

@@ -0,0 +1,60 @@
+# This file configures Charmcraft.
+# See https://documentation.ubuntu.com/charmcraft/stable/reference/files/charmcraft-yaml-file/
+type: charm
+name: kosmos
+title: Web Server Demo
+summary: A demo charm that operates a small Python FastAPI server.
+description: |
+  This charm demonstrates how to write a Kubernetes charm with Ops.
+
+# Documentation:
+# https://documentation.ubuntu.com/charmcraft/stable/howto/build-guides/select-platforms/
+base: ubuntu@24.04
+platforms:
+  amd64:
+  arm64:
+
+assumes:
+  - juju >= 3.6
+  - k8s-api
+
+parts:
+  charm:
+    plugin: uv
+    source: .
+    build-snaps:
+      - astral-uv
+
+# (Optional) Configuration options for the charm
+# This config section defines charm config options, and populates the Configure
+# tab on Charmhub.
+# More information on this section at:
+# https://documentation.ubuntu.com/charmcraft/stable/reference/files/charmcraft-yaml-file/#config
+# General configuration documentation:
+# https://documentation.ubuntu.com/juju/3.6/reference/configuration/#application-configuration
+config:
+  options:
+    # An example config option to customise the log level of the workload
+    log-level:
+      description: |
+        Configures the log level of gunicorn.
+
+        Acceptable values are: "info", "debug", "warning", "error" and "critical"
+      default: "info"
+      type: string
+
+containers:
+  demo-server:
+    resource: demo-server-image
+
+resources:
+  # An OCI image resource for the container listed above.
+  demo-server-image:
+    type: oci-image
+    description: OCI image from GitHub Container Repository
+    # The upstream-source field is ignored by Charmcraft and Juju, but it can be
+    # useful to developers in identifying the source of the OCI image.  It is also
+    # used by the 'canonical/charming-actions' GitHub action for automated releases.
+    # The test_deploy function in tests/integration/test_charm.py reads upstream-source
+    # to determine which OCI image to use when running the charm's integration tests.
+    upstream-source: ghcr.io/canonical/api_demo_server:1.0.4

kepler/pyproject.toml

@@ -0,0 +1,91 @@
+# Copyright 2026 Canonical Ltd.
+#
+# 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.
+
+[project]
+name = "kosmos"
+version = "0.0.1"
+requires-python = ">=3.10"
+
+# Dependencies of the charm code
+# You should list the dependencies of the code in src/, including any charm libraries from PyPI.
+# We recommend using uv to maintain this list. For example, 'uv add charmlibs-pathops'.
+# If your code uses any libraries from Charmhub, don't list those libraries here. Instead, add a
+# 'charm-libs' block in charmcraft.yaml, run `charmcraft fetch-libs` to download the libraries,
+# then inspect the libraries for dependencies specified in PYDEPS. List those dependencies here.
+dependencies = [
+    "ops~=3.7",
+]
+
+[dependency-groups]
+# Dependencies of linting and static type checks
+lint = [
+    "ruff",
+    "codespell",
+    "pyright",
+]
+# Dependencies of unit tests
+unit = [
+    "coverage[toml]",
+    "ops[testing]",
+    "pytest",
+]
+# Dependencies of integration tests
+integration = [
+    "jubilant>=1.8,<2",
+    "pytest",
+    "pytest-jubilant>=2.0.1,<3",
+    "PyYAML",
+]
+
+# Testing tools configuration
+[tool.coverage.run]
+branch = true
+
+[tool.coverage.report]
+show_missing = true
+
+[tool.pytest.ini_options]
+minversion = "6.0"
+log_cli_level = "INFO"
+
+# Linting tools configuration
+[tool.ruff]
+line-length = 99
+lint.select = ["E", "W", "F", "C", "N", "D", "I001"]
+lint.ignore = [
+    "D105",
+    "D107",
+    "D203",
+    "D204",
+    "D213",
+    "D215",
+    "D400",
+    "D404",
+    "D406",
+    "D407",
+    "D408",
+    "D409",
+    "D413",
+]
+lint.per-file-ignores = {"tests/*" = ["D100","D101","D102","D103","D104"]}
+extend-exclude = ["__pycache__", "*.egg_info"]
+
+[tool.ruff.lint.mccabe]
+max-complexity = 10
+
+[tool.codespell]
+skip = "build,lib,venv,icon.svg,.tox,.git,.mypy_cache,.ruff_cache,.coverage"
+
+[tool.pyright]
+include = ["src", "tests"]