Add iptables, gitea, and iodine services

gitea/README.md

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+# Gitea
+
+## Create User
+
+```sh
+sudo sed -i '$ a git:*:2050:2050::/data/git:/bin/sh' /etc/passwd
+sudo sed -i '$ a git:x:2050:' /etc/group
+
+sudo mkdir -p /data/git/gitea
+sudo chown -R git: /data/git
+```
+
+## Install Software
+
+```sh
+sudo apt install git
+sudo -u git wget -O /data/git/gitea/gitea https://dl.gitea.io/gitea/...
+sudo -u git chmod +x /data/git/gitea/gitea
+```
+
+## Apply Configuration
+
+```sh
+DOMAIN=example.com
+
+sudo cp nginx.conf /etc/nginx/sites-available/git
+sudo cp gitea.service /etc/systemd/system
+
+sudo systemctl enable gitea
+sudo systemctl start gitea
+
+sudo sed -i s/example.com/$DOMAIN/ /etc/nginx/sites-available/git
+
+sudo ln -s ../sites-available/git /etc/nginx/sites-enabled
+sudo nginx -s reload
+
+
+sudo iptables -t nat -A PREROUTING -p tcp --dport 4986 -j REDIRECT --to-ports 22222
+
+sudo -u git sed -i /MODE.*file/s/file/console/ /data/git/gitea/custom/conf/app.ini
+sudo -u git sed -i /LEVEL.*info/s/info/warn/ /data/git/gitea/custom/conf/app.ini
+sudo -u git /data/git/gitea/gitea admin create-user --username admin --password admin --admin --email admin
+```

gitea/gitea.service

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+[Unit]
+Description=Gitea
+After=network.target
+
+[Service]
+ExecStart=/data/git/gitea/gitea web
+User=git
+
+[Install]
+WantedBy=multi-user.target

gitea/nginx.conf

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+server {
+	server_name git.example.com;
+
+	listen 443 ssl;
+
+	location / {
+		proxy_pass http://localhost:3000;
+		include proxy_params;
+	}
+}