[Caddy 2 .well-known/assetlinks.json config for WeKan Android Play Store app](../PWA#fullscreen-android-app-with-caddy-and-wekan-server)

## Caddy 2

WeKan Snap Candidate for any Snap distros: https://github.com/wekan/wekan/wiki/OpenSuse , disable internal old Caddy 1, when using Caddy 2:
```
sudo snap set wekan caddy-enabled='false'
sudo snap set wekan port='3001'
sudo snap set wekan root-url='https://boards.example.com'
```
More info about root-url at https://github.com/wekan/wekan/wiki/Settings

Browser needs to have only one language https://github.com/wekan/wekan/issues/4803#issuecomment-1374354425

Install Caddy 2 stable release: https://caddyserver.com/docs/install#debian-ubuntu-raspbian

Like this:
```
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https

curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg

curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list

sudo apt update

sudo apt -y install caddy
```
Edit Caddyfile:

```
sudo nano /etc/caddy/Caddyfile
```

Example:

```
# Redirecting http to https

(redirect) {
        @http {
                protocol http
        }
        redir @http https://{host}{uri}
}

# WeKan board, proxy to localhost port, or IP-ADDRESS:PORT
boards.example.com {
        tls {
                load /var/snap/wekan/common/certs
                alpn http/1.1
        }

        reverse_proxy 127.0.0.1:3025
}

# Static website
example.com {
        tls {
                load /var/snap/wekan/common/certs
                alpn http/1.1
        }
        root * /var/websites/wekan.team
        file_server
}

# Files download directory browse website
files.example.com {
        root * /var/websites/ftp.secretchronicles.org/public
        file_server browse
}
```

Caddy commands list:
```
caddy help
```

***

### PWA site.webmanifest icons override Caddy example

PWABuilder settings to create Android app at https://pwabuilder.com
- Web view (not Custom Tabs)
- Fullscreen (When not showing top and bottom toolbars. If you like to show those toolbars, change fullscreen to standalone)
- Notifications [X] Enable
- Signing key [X] Use mine

PWABuilder upgrades:
- Android app upgrade to Android SDK 34 was made with help of this video https://github.com/pwa-builder/PWABuilder/issues/4766#issuecomment-2229867608

Icons override at site.webmanifest:
- These settings at Caddyfile override icon URLs etc

If you like to show toolbars at top and bottom, change also here `fullscreen` to `standalone`

```
boards.wekan.team {
	tls {
		alpn http/1.1
	}
	header /.well-known/* Content-Type application/json
	header /.well-known/* Access-Control-Allow-Origin *
	respond /.well-known/assetlinks.json `[ {
		"relation": ["delegate_permission/common.handle_all_urls"],
		"target": {
			"namespace": "android_app",
			"package_name": "team.wekan.boards.twa",
			"sha256_cert_fingerprints": ["AA:AA:ED:7D:4C:9C:5A:A3:B5:DA:10:66:14:34:07:5D:EB:BE:96:CD:82:7B:09:46:47:13:65:29:5B:EA:96:30","61:41:86:5B:05:13:9B:64:5F:39:75:5A:16:C3:F2:22:25:6C:DA:74:B9:B0:8C:5F:93:B0:D2:26:65:16:1B:E6"]
		}
	}	]`
	header /site.webmanifest/* Content-Type application/json
	header /site.webmanifest/* Access-Control-Allow-Origin *
	respond /site.webmanifest ` {
		"name": "Wekan",
		"short_name": "Wekan",
		"icons": [ {
			"src": "svg-etc/wekan-logo-512.svg",
			"sizes": "any",
			"type": "image/svg"
		}		, {
			"src": "android-chrome-192x192.png",
			"sizes": "192x192",
			"type": "image/png"
		}		, {
			"src": "android-chrome-512x512.png",
			"sizes": "512x512",
			"type": "image/png"
		}		, {
			"src": "Square150x150Logo.scale-100.png",
			"sizes": "150x150",
			"type": "image/png"
		}		, {
			"src": "Square44x44Logo.scale-100.png",
			"sizes": "44x44",
			"type": "image/png"
		}		, {
			"src": "StoreLogo.scale-100.png",
			"sizes": "50x50",
			"type": "image/png"
		}		, {
			"src": "maskable_icon.png",
			"sizes": "474x474",
			"type": "image/png",
			"purpose": "maskable"
		}		, {
			"src": "monochrome-icon-512x512.png",
			"sizes": "512x512",
			"type": "image/png",
			"purpose": "monochrome"
		}		, {
			"src": "windows11/SmallTile.scale-100.png",
			"sizes": "71x71"
		}		, {
			"src": "windows11/SmallTile.scale-125.png",
			"sizes": "89x89"
		}		, {
			"src": "windows11/SmallTile.scale-150.png",
			"sizes": "107x107"
		}		, {
			"src": "windows11/SmallTile.scale-200.png",
			"sizes": "142x142"
		}		, {
			"src": "windows11/SmallTile.scale-400.png",
			"sizes": "284x284"
		}		, {
			"src": "windows11/Square150x150Logo.scale-100.png",
			"sizes": "150x150"
		}		, {
			"src": "windows11/Square150x150Logo.scale-125.png",
			"sizes": "188x188"
		}		, {
			"src": "windows11/Square150x150Logo.scale-150.png",
			"sizes": "225x225"
		}		, {
			"src": "windows11/Square150x150Logo.scale-200.png",
			"sizes": "300x300"
		}		, {
			"src": "windows11/Square150x150Logo.scale-400.png",
			"sizes": "600x600"
		}		, {
			"src": "windows11/Wide310x150Logo.scale-100.png",
			"sizes": "310x150"
		}		, {
			"src": "windows11/Wide310x150Logo.scale-125.png",
			"sizes": "388x188"
		}		, {
			"src": "windows11/Wide310x150Logo.scale-150.png",
			"sizes": "465x225"
		}		, {
			"src": "windows11/Wide310x150Logo.scale-200.png",
			"sizes": "620x300"
		}		, {
			"src": "windows11/Wide310x150Logo.scale-400.png",
			"sizes": "1240x600"
		}		, {
			"src": "windows11/LargeTile.scale-100.png",
			"sizes": "310x310"
		}		, {
			"src": "windows11/LargeTile.scale-125.png",
			"sizes": "388x388"
		}		, {
			"src": "windows11/LargeTile.scale-150.png",
			"sizes": "465x465"
		}		, {
			"src": "windows11/LargeTile.scale-200.png",
			"sizes": "620x620"
		}		, {
			"src": "windows11/LargeTile.scale-400.png",
			"sizes": "1240x1240"
		}		, {
			"src": "windows11/Square44x44Logo.scale-100.png",
			"sizes": "44x44"
		}		, {
			"src": "windows11/Square44x44Logo.scale-125.png",
			"sizes": "55x55"
		}		, {
			"src": "windows11/Square44x44Logo.scale-150.png",
			"sizes": "66x66"
		}		, {
			"src": "windows11/Square44x44Logo.scale-200.png",
			"sizes": "88x88"
		}		, {
			"src": "windows11/Square44x44Logo.scale-400.png",
			"sizes": "176x176"
		}		, {
			"src": "windows11/StoreLogo.scale-100.png",
			"sizes": "50x50"
		}		, {
			"src": "windows11/StoreLogo.scale-125.png",
			"sizes": "63x63"
		}		, {
			"src": "windows11/StoreLogo.scale-150.png",
			"sizes": "75x75"
		}		, {
			"src": "windows11/StoreLogo.scale-200.png",
			"sizes": "100x100"
		}		, {
			"src": "windows11/StoreLogo.scale-400.png",
			"sizes": "200x200"
		}		, {
			"src": "windows11/SplashScreen.scale-100.png",
			"sizes": "620x300"
		}		, {
			"src": "windows11/SplashScreen.scale-125.png",
			"sizes": "775x375"
		}		, {
			"src": "windows11/SplashScreen.scale-150.png",
			"sizes": "930x450"
		}		, {
			"src": "windows11/SplashScreen.scale-200.png",
			"sizes": "1240x600"
		}		, {
			"src": "windows11/SplashScreen.scale-400.png",
			"sizes": "2480x1200"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-16.png",
			"sizes": "16x16"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-20.png",
			"sizes": "20x20"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-24.png",
			"sizes": "24x24"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-30.png",
			"sizes": "30x30"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-32.png",
			"sizes": "32x32"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-36.png",
			"sizes": "36x36"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-40.png",
			"sizes": "40x40"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-44.png",
			"sizes": "44x44"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-48.png",
			"sizes": "48x48"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-60.png",
			"sizes": "60x60"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-64.png",
			"sizes": "64x64"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-72.png",
			"sizes": "72x72"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-80.png",
			"sizes": "80x80"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-96.png",
			"sizes": "96x96"
		}		, {
			"src": "windows11/Square44x44Logo.targetsize-256.png",
			"sizes": "256x256"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-16.png",
			"sizes": "16x16"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-20.png",
			"sizes": "20x20"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-24.png",
			"sizes": "24x24"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-30.png",
			"sizes": "30x30"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-32.png",
			"sizes": "32x32"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-36.png",
			"sizes": "36x36"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-40.png",
			"sizes": "40x40"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-44.png",
			"sizes": "44x44"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-48.png",
			"sizes": "48x48"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-60.png",
			"sizes": "60x60"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-64.png",
			"sizes": "64x64"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-72.png",
			"sizes": "72x72"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-80.png",
			"sizes": "80x80"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-96.png",
			"sizes": "96x96"
		}		, {
			"src": "windows11/Square44x44Logo.altform-unplated_targetsize-256.png",
			"sizes": "256x256"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-16.png",
			"sizes": "16x16"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-20.png",
			"sizes": "20x20"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-24.png",
			"sizes": "24x24"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-30.png",
			"sizes": "30x30"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-32.png",
			"sizes": "32x32"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-36.png",
			"sizes": "36x36"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-40.png",
			"sizes": "40x40"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-44.png",
			"sizes": "44x44"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-48.png",
			"sizes": "48x48"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-60.png",
			"sizes": "60x60"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-64.png",
			"sizes": "64x64"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-72.png",
			"sizes": "72x72"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-80.png",
			"sizes": "80x80"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-96.png",
			"sizes": "96x96"
		}		, {
			"src": "windows11/Square44x44Logo.altform-lightunplated_targetsize-256.png",
			"sizes": "256x256"
		}		, {
			"src": "android/android-launchericon-512-512.png",
			"sizes": "512x512"
		}		, {
			"src": "android/android-launchericon-192-192.png",
			"sizes": "192x192"
		}		, {
			"src": "android/android-launchericon-144-144.png",
			"sizes": "144x144"
		}		, {
			"src": "android/android-launchericon-96-96.png",
			"sizes": "96x96"
		}		, {
			"src": "android/android-launchericon-72-72.png",
			"sizes": "72x72"
		}		, {
			"src": "android/android-launchericon-48-48.png",
			"sizes": "48x48"
		}		, {
			"src": "ios/16.png",
			"sizes": "16x16"
		}		, {
			"src": "ios/20.png",
			"sizes": "20x20"
		}		, {
			"src": "ios/29.png",
			"sizes": "29x29"
		}		, {
			"src": "ios/32.png",
			"sizes": "32x32"
		}		, {
			"src": "ios/40.png",
			"sizes": "40x40"
		}		, {
			"src": "ios/50.png",
			"sizes": "50x50"
		}		, {
			"src": "ios/57.png",
			"sizes": "57x57"
		}		, {
			"src": "ios/58.png",
			"sizes": "58x58"
		}		, {
			"src": "ios/60.png",
			"sizes": "60x60"
		}		, {
			"src": "ios/64.png",
			"sizes": "64x64"
		}		, {
			"src": "ios/72.png",
			"sizes": "72x72"
		}		, {
			"src": "ios/76.png",
			"sizes": "76x76"
		}		, {
			"src": "ios/80.png",
			"sizes": "80x80"
		}		, {
			"src": "ios/87.png",
			"sizes": "87x87"
		}		, {
			"src": "ios/100.png",
			"sizes": "100x100"
		}		, {
			"src": "ios/114.png",
			"sizes": "114x114"
		}		, {
			"src": "ios/120.png",
			"sizes": "120x120"
		}		, {
			"src": "ios/128.png",
			"sizes": "128x128"
		}		, {
			"src": "ios/144.png",
			"sizes": "144x144"
		}		, {
			"src": "ios/152.png",
			"sizes": "152x152"
		}		, {
			"src": "ios/167.png",
			"sizes": "167x167"
		}		, {
			"src": "ios/180.png",
			"sizes": "180x180"
		}		, {
			"src": "ios/192.png",
			"sizes": "192x192"
		}		, {
			"src": "ios/256.png",
			"sizes": "256x256"
		}		, {
			"src": "ios/512.png",
			"sizes": "512x512"
		}		, {
			"src": "ios/1024.png",
			"sizes": "1024x1024"
		}
		],
		"screenshots": [ {
			"src": "screenshot1.webp",
			"sizes": "1280x720",
			"type": "image/webp"
		}		, {
			"src": "screenshot2.webp",
			"sizes": "1280x720",
			"type": "image/webp"
		}
		],
		"theme_color": "#000000",
		"background_color": "#000000",
		"start_url": "sign-in",
		"display": "fullscreen",
		"orientation": "any",
		"categories": [
		"productivity"
		],
		"iarc_rating_id": "70d7c4a4-3e5a-4714-a7dc-fa006613ba96",
		"description": "Open Source kanban with MIT license",
		"dir": "auto",
		"scope": "https://boards.wekan.team",
		"prefer_related_applications": false,
		"display_override": [
		"fullscreen"
		]
	}	`
	reverse_proxy 127.0.0.1:3025
}
```

***

[Caddy OAuth2 with Let's Encrypt SSL example](OAuth2)

***

## CloudFlare free wildcard SSL *start*

Also works with other SSL certs.

### 1) Requirements: You have changed nameservers to CloudFlare.

### 2) Get CloudFlare SSL wildcard Origin Certificate

Go to CloudFlare login/example.com/Crypto/Origin Certificates.
Create and download certs for `*.example.com, example.com`

### 3) Create directory /var/snap/wekan/common/certs
```
sudo su
cd /var/snap/wekan/common
mkdir certs
cd certs
```
### 4) Create cert file
Create file: `example.com.pem` with content of CloudFlare Origin Certificates.
```
nano example.com.pem
```
There add certs:
```
-----BEGIN PRIVATE KEY-----
-----END PRIVATE KEY-----
-----BEGIN CERTIFICATE-----
-----END CERTIFICATE-----
```

Then Save: Ctrl-o Enter

Then Exit: Ctrl-x.

### 5) Set permissions rw-r--r-- to example.com.pem:
```
chmod 644 example.com.pem
```

### 6) Edit Caddy webserver config
```
sudo nano /var/snap/wekan/common/Caddyfile
```
There change config:
```
http://example.com https://example.com {
        tls {
            load /var/snap/wekan/common/certs
            alpn http/1.1
        }
        proxy / localhost:3001 {
          websocket
          transparent
        }
}
```
Save: Ctrl-o Enter

Exit: Ctrl-x

Enable Caddy:
```
sudo snap set wekan caddy-enabled='true'
sudo snap set wekan port='3001'
sudo snap set wekan root-url='https://example.com'
```

### 7) Enable CloudFlare SSL

Click CloudFlare login/example.com/DNS.

Check that status of your domains have orange cloud color, so traffic goes through CloudFlare SSL.

Click CloudFlare login/example.com/Page Rules.
Set for example:
```
1) http://example.com/*
Always Use HTTPS
2) http://*.example.com/*
Always use HTTPS
```
Optionally, if you want caching:
```
3) *example.com/*
Cache Level: Cache Everything
```
## CloudFlare free wildcard SSL *end*

***

## Other config stuff

[List of Let's Encrypt implementations](https://community.letsencrypt.org/t/list-of-client-implementations/2103)

## Caddy webserver config with logs

Create directory for caddy, website and logs:
```bash
mkdir -p ~/caddy/example.com ~/caddy/logs
```

Add this config to ~/caddy/Caddyfile

There's also some extra examples.

```bash
example.com {
        root /home/username/caddy/example.com
        # Static website, markdown or html
        ext .md .html

        proxy /wekan 127.0.0.1:3000 {
                websocket
        }

	log /home/username/caddy/logs/wekan-access.log {
	    rotate {
		size 100 # Rotate after 100 MB
		age  7   # Keep log files for 7 days
		keep 52  # Keep at most 52 log files
	    }
	}
	errors {
		log /home/username/caddy/logs/wekan-error.log {
			size 100 # Rotate after 100 MB
			age  7   # Keep log files for 7 days
			keep 52  # Keep at most 52 log files
		}
	}
}

example.com/files {
	root /home/username/files
	# View files in directory, has sorting in browser
	browse
}
```

Install Caddy. Change username to what user you run caddy, like in /home/username , and Let's Encrypt email to your email adderess:

```bash
# Install caddy with some plugins
curl https://getcaddy.com | bash -s personal http.ipfilter,http.mailout,http.ratelimit,http.realip
```

# Give permissions to caddy to bind 80 and 443

```
sudo setcap cap_net_bind_service=+ep /usr/local/bin/caddy
```

And this service file for Caddy to /etc/systemd/system/caddy@.service

```bash
; see `man systemd.unit` for configuration details
; the man section also explains *specifiers* `%x`

[Unit]
Description=Caddy HTTP/2 web server %I
Documentation=https://caddyserver.com/docs
After=network-online.target
Wants=network-online.target
Wants=systemd-networkd-wait-online.service

[Service]
; run user and group for caddy
User=username
Group=username
ExecStart=/home/username/caddy/caddy -conf=/home/username/caddy/Caddyfile -agree -email="admin@example.com"
Restart=on-failure
StartLimitInterval=86400
StartLimitBurst=5
RestartSec=10
ExecReload=/bin/kill -USR1 $MAINPID
; limit the number of file descriptors, see `man systemd.exec` for more limit settings
LimitNOFILE=1048576
LimitNPROC=64
; create a private temp folder that is not shared with other processes
PrivateTmp=true
PrivateDevices=true
ProtectSystem=full
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE
NoNewPrivileges=true

[Install]
WantedBy=multi-user.target
```

Start caddy and enable service:
```
sudo systemctl daemon-reload
sudo systemctl start caddy@username
sudo systemctl enable caddy@username
```