Skyline API Server

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Skyline is an OpenStack dashboard optimized by UI and UE, support OpenStack Train+. It has a modern technology stack and ecology, is easier for developers to maintain and operate by users, and has higher concurrency performance.

Skyline's mascot is the nine-color deer. The nine-color deer comes from Dunhuang mural “the nine-color king deer”, whose moral is Buddhist cause-effect and gratefulness, which is consistent with 99cloud's philosophy of embracing and feedback community since its inception. We also hope Skyline can keep light, elegant and powerful as the nine-color deer, to provide a better dashboard for the openstack community and users.

Table of contents

• Skyline API Server
  • Resources
  • Quick Start
    • Prerequisites
    • Configure
    • Deployment with Sqlite
    • Deployment with MariaDB
    • Test Access
  • Develop Skyline-apiserver
    • Dependent tools
    • Install & Run
  • Devstack Integration
  • Kolla Ansible Deployment

Resources

• Developer Docs
• Release notes
• Wiki
• Bug Tracker

Quick Start

Prerequisites

• An OpenStack environment that runs at least core components and can access OpenStack components through Keystone endpoints
• A Linux server with container engine (docker or podman) installed

Configure

1. Edit the /etc/skyline/skyline.yaml file in linux server

   You can refer to the sample file, and modify the following parameters according to the actual environment

   • database_url
   • keystone_url
   • default_region
   • interface_type
   • system_project_domain
   • system_project
   • system_user_domain
   • system_user_name
   • system_user_password

Deployment with Sqlite

1. Run the skyline_bootstrap container to bootstrap

   rm -rf /tmp/skyline && mkdir /tmp/skyline && mkdir /var/log/skyline
   
   docker run -d --name skyline_bootstrap -e KOLLA_BOOTSTRAP="" -v /var/log/skyline:/var/log/skyline -v /etc/skyline/skyline.yaml:/etc/skyline/skyline.yaml -v /tmp/skyline:/tmp --net=host 99cloud/skyline:latest
   
   # Check bootstrap is normal `exit 0`
   docker logs skyline_bootstrap

2. Run the skyline service after bootstrap is complete

   docker rm -f skyline_bootstrap

   If you need to modify skyline port, add -e LISTEN_ADDRESS=<ip:port> in the following command

   LISTEN_ADDRESS defaults to 0.0.0.0:9999

   If you need to modify the policy rules of a service, add -v /etc/skyline/policy:/etc/skyline/policy in the following command

   Rename the service policy yaml file to <service_name>_policy.yaml, and place it in /etc/skyline/policy folder

   docker run -d --name skyline --restart=always -v /var/log/skyline:/var/log/skyline -v /etc/skyline/skyline.yaml:/etc/skyline/skyline.yaml -v /tmp/skyline:/tmp --net=host 99cloud/skyline:latest

Deployment with MariaDB

https://docs.openstack.org/skyline-apiserver/latest/install/docker-install-ubuntu.html

API Doc

You can visit the API doc https://<ip_address>:9999/api/openstack/skyline/docs

Test Access

You can now access the dashboard: https://<ip_address>:9999

Develop Skyline-apiserver

Support Linux & Mac OS (Recommend Linux OS) (Because uvloop & cython)

Dependent tools

Use the new feature Context Variables of python37 & uvloop(0.15.0+ requires python37). Considering that most systems do not support python37, we choose to support python38 at least.

• make >= 3.82
• python >= 3.8
• node >= 10.22.0 (Optional if you only develop with apiserver)
• yarn >= 1.22.4 (Optional if you only develop with apiserver)

Install & Run

1. Installing dependency packages

   tox -e venv

2. Set skyline.yaml config file

   cp etc/skyline.yaml.sample etc/skyline.yaml
   export OS_CONFIG_DIR=$(pwd)/etc

   Maybe you should change the params with your real environment as followed:

   - database_url
   - keystone_url
   - default_region
   - interface_type
   - system_project_domain
   - system_project
   - system_user_domain
   - system_user_name
   - system_user_password

   If you set such as sqlite:////tmp/skyline.db for database_url , just do as followed. If you set such as mysql://root:root@localhost:3306/skyline for database_url , you should refer to steps 1 and 2 of the chapter Deployment with MariaDB at first.

3. Init skyline database

   source .tox/venv/bin/activate
   make db_sync
   deactivate

4. Run skyline-apiserver

   $ source .tox/venv/bin/activate
   $ uvicorn --reload --reload-dir skyline_apiserver --port 28000 --log-level debug skyline_apiserver.main:app
   
   INFO:     Uvicorn running on http://127.0.0.1:28000 (Press CTRL+C to quit)
   INFO:     Started reloader process [154033] using statreload
   INFO:     Started server process [154037]
   INFO:     Waiting for application startup.
   INFO:     Application startup complete.

   You can now access the online API documentation: http://127.0.0.1:28000/docs.

   Or, you can launch debugger with .vscode/lauch.json with vscode.

5. Build Image

   make build

Devstack Integration

Fast integration with Devstack to build an environment.

Kolla Ansible Deployment

Kolla Ansible to build an environment.

FAQ

1. Policy

   Q: Why common user could login, but could list the nova servers?

   Bug #2049807

   Symptom:
   -----------------------------------
   1. Login Horizon with common user A, list servers OK.
   2. Login Skyline with same common user A, could list the nova servers, F12 show no http requests sent from network, however webpage show 401, do not allow to list servers
   
   Root Cause Analysis:
   -----------------------------------
   1. Horizon don't know whether a user could do an action at a resource or not. It simply pass request to recording service, & service (Nova) do the check by its policy file. So it works.
   2. Skyline check the action by itself, with /policy API. If you do not configure it, the default value follows community, like: https://docs.openstack.org/nova/2023.2/configuration/sample-policy.html
   
   How to fix:
   -----------------------------------
   1. By default, list servers need "project_reader_api": "role:reader and project_id:%(project_id)s"
   2. You should config your customized role, for example: member, _member_, projectAdmin, etc, create implied reader role. "openstack implied role create --implied-role member projectAdmin", or "openstack implied role create --implied-role reader _member_"
   
   # openstack implied role list
   +----------------------------------+-----------------+----------------------------------+-------------------+
   | Prior Role ID | Prior Role Name | Implied Role ID | Implied Role Name |
   +----------------------------------+-----------------+----------------------------------+-------------------+
   | fe21c5a0d17149c2a7b02bf39154d110 | admin | 4376fc38ba6a44e794671af0a9c60ef5 | member |
   | 4376fc38ba6a44e794671af0a9c60ef5 | member | e081e01b7a4345bc85f8d3210b95362d | reader |
   | bee8fa36149e434ebb69b61d12113031 | projectAdmin | 4376fc38ba6a44e794671af0a9c60ef5 | member |
   | 77cec9fc7e764bd4bf60581869c048de | _member_ | e081e01b7a4345bc85f8d3210b95362d | reader |
   +----------------------------------+-----------------+----------------------------------+-------------------+