chore: Uses UV for dependency management (#430)

.gitignore

@@ -7,6 +7,45 @@
 # Python
 **/venv/**
 *.pyc
+*.venv
+build/
+*.egg-info/
 
 # Charmcraft
 *.charm
+
+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+crash.*.log
+
+# Exclude all .tfvars files, which are likely to contain sensitive data, such as
+# password, private keys, and other secrets. These should not be part of version
+# control as they are data points which are potentially sensitive and subject
+# to change depending on the environment.
+*.tfvars
+*.tfvars.json
+
+# Ignore override files as they are usually used to override resources locally and so
+# are not checked in
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Include override files you do wish to add to version control using negated pattern
+# !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc
+.terraform.lock.hcl

CONTRIBUTING.md

@@ -13,7 +13,7 @@ lxd init --auto
 
 Install MicroK8s:
 ```shell
-sudo snap install microk8s --channel=1.27-strict/stable
+sudo snap install microk8s --channel=1.31-strict/stable
 sudo usermod -a -G snap_microk8s $USER
 newgrp snap_microk8s
 sudo microk8s enable hostpath-storage
@@ -27,25 +27,30 @@ sudo microk8s enable multus
 
 Install Juju and bootstrap a controller on the MicroK8S instance:
 ```shell
-sudo snap install juju --channel=3.4/stable
+sudo snap install juju --channel=3.5/stable
 juju bootstrap microk8s
 ```
 
-Install `pip` and `tox`:
+This project uses `uv`. You can install it on Ubuntu with:
+
 ```shell
-sudo apt install python3-pip
-python3 -m pip install "tox>=4.0.0"
+sudo snap install --classic astral-uv
 ```
 
-## Development
-Activate the virtual environment created by `tox` for development:
+You can create an environment for development with `uv`:
+
 ```shell
-tox --notest -e unit
-source .tox/unit/bin/activate
+uv sync
+source .venv/bin/activate
 ```
 
 ## Testing
-This project uses `tox` for managing test environments.
+This project uses `tox` for managing test environments. It can be installed
+with:
+
+```shell
+uv tool install tox --with tox-uv
+```
 
 There are some pre-configured environments
 that can be used for linting and formatting code when you're preparing contributions to the charm:

charmcraft.yaml

@@ -70,12 +70,23 @@ platforms:
 
 parts:
   charm:
+    source: .
+    plugin: charm
+    charm-requirements:
+      - requirements.txt
     build-packages:
       - cargo
       - libffi-dev
       - libssl-dev
       - pkg-config
       - rustc
+    build-snaps:
+      - astral-uv
+      - rustup
+    override-build: |
+      rustup default stable
+      uv export --frozen --no-dev -o requirements.txt
+      craftctl default
 
 config:
   options:

pyproject.toml

@@ -1,3 +1,40 @@
+[project]
+name = "sdcore-upf-k8s-operator"
+version = "0.1.0"
+requires-python = ">=3.10"
+
+dependencies = [
+    "cosl",
+    "httpx",
+    "ipaddress",
+    "jinja2",
+    "juju",
+    "lightkube",
+    "lightkube-models",
+    "macaddress",
+    "ops",
+    "pydantic-extra-types",
+    "pydantic<3.0",
+    "pytest-interface-tester",
+    "pyyaml",
+]
+
+[dependency-groups]
+test = [
+    "coverage[toml]",
+    "juju>=3.5.2.1",
+    "pytest",
+    "pytest-asyncio<0.23",
+    "pytest-operator",
+    "parameterized",
+    "ops-scenario",
+]
+dev = [
+    "codespell",
+    "pyright",
+    "ruff",
+]
+
 # Testing tools configuration
 [tool.coverage.run]
 branch = true
@@ -15,11 +52,11 @@ line-length = 99
 [tool.ruff.lint]
 select = ["E", "W", "F", "C", "N", "D", "I001"]
 extend-ignore = [
+    "D107",
     "D203",
     "D204",
     "D213",
     "D215",
-    "D107",
     "D400",
     "D404",
     "D406",