* Split provider/pia.go in piav3.go and piav4.go
* Change port forwarding signature
* Enable port forwarding parameter for PIA v4
* Fix VPN gateway IP obtention
* Setup HTTP client for TLS with custom cert
* Error message for regions not supporting pf
* Updater loop with period and http route
* Using DNS over TLS to update servers
* Better logging
* Remove goroutines for cyberghost updater
* Respects context for servers update (quite slow overall)
* Increase shutdown grace period to 5 seconds
* Update announcement
* Add log lines for each provider update start
- Goal was to simplify main.go complexity
- Use common structures and interfaces for all vpn providers
- Moved files around
- Removed some alias models
- Plain DNS is used only for the first resolving of github.com to obtain block lists and crypto files required by Unbound
- DNS over TLS is used at all time by the system and the Go program thereafter, even between periodic restarts
- Downtime during a periodic update is < 1 second
- On an Unbound start or unexpected exit error, the container falls back on the unencrypted version of the DNS in order to try restarting Unbound
- General improvements
- Parallel download of only needed files at start
- Prettier console output with all streams merged (openvpn, unbound, shadowsocks etc.)
- Simplified Docker final image
- Faster bootup
- DNS over TLS
- Finer grain blocking at DNS level: malicious, ads and surveillance
- Choose your DNS over TLS providers
- Ability to use multiple DNS over TLS providers for DNS split horizon
- Environment variables for DNS logging
- DNS block lists needed are downloaded and built automatically at start, in parallel
- PIA
- A random region is selected if the REGION parameter is left empty (thanks @rorph for your PR)
- Routing and iptables adjusted so it can work as a Kubernetes pod sidecar (thanks @rorph for your PR)
