# 影片平台

- [Kaltura](https://corp.kaltura.com/)
- [Panopto](https://www.panopto.com/)
- [Opencast](https://opencast.org/)

## 比較
- [6個最佳教育視頻平台](https://www.epiphan.com/blog/best-video-platforms-for-education/)

## OpenCast 安裝實作
1. [vscode](https://code.visualstudio.com/blogs/2020/12/03/chromebook-get-started)
2. [docker](https://docs.docker.com/engine/install/debian/)
3. [docker-compose](https://docs.docker.com/compose/install/linux/)
4. [使用 Docker 架設 Opencast](https://docs.opencast.org/r/12.x/admin/#installation/docker-local/)

### Docker
先更新到最新版的 Debian
https://docs.docker.com/engine/install/debian/

### 使用 Docker 架設 Opencast
使用 all-in-one + PostgreSQL

//Choose and download a configuration:
sudo curl -o docker-compose.yml https://raw.githubusercontent.com/opencast/opencast-docker/12.4/docker-compose/docker-compose.allinone.postgres.yml

// start Opencast with the up command:
docker-compose up

-> 無法使用,可能是 DNS 污染
[解决 raw.githubusercontent.com 无法访问的问题](https://learnku.com/articles/43426)
https://raw.githubusercontent.com/opencast/opencast-docker/12.4/docker-compose/docker-compose.allinone.postgres.yml

-> fixed

### use ngrok to make a server
#### install ngrok snap (fail)
update packages

sudo apt update

install snap

sudo apt install snapd

install ngrok

sudo snap install ngrok

Error:

error: system does not fully support snapd: cannot mount squashfs image using "squashfs": mount:

-> snaps rely on certain Linux kernel features which are not available under containerized servers
https://askubuntu.com/questions/1340831/20-04-snapd-issue-system-does-not-fully-support-snapd-cannot-mount-squashfs-i

#### install ngrok with curl&apt

curl -s https://ngrok-agent.s3.amazonaws.com/ngrok.asc | sudo tee /etc/apt/trusted.gpg.d/ngrok.asc >/dev/null && echo "deb https://ngrok-agent.s3.amazonaws.com buster main" | sudo tee /etc/apt/sources.list.d/ngrok.list && sudo apt update && sudo apt install ngrok

#### ngrok make tunnel

ngrok http 8080

## 啟動

sudo docker compose up