add first draft of Gitea server setup

readme.md

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+# Create Gitea Server
+
+```
+sudo apt-get install  git sqlite -y
+
+--create git user without login
+
+sudo adduser --disabled-login --gecos 'Gitea' git
+```
+
+```
+$ wget -O gitea https://dl.gitea.io/gitea/1.10.2/gitea-1.10.2-linux-amd64
+
+
+$ wget -O gitea https://dl.gitea.io/gitea/1.10.2/gitea-1.10.2-linux-arm-7
+
+$ wget -O gitea https://dl.gitea.io/gitea/1.10.2/gitea-1.10.2-linux-arm-6
+$ chmod +x gitea
+```
+
+Add git user
+
+```
+$ sudo useradd -m git
+```
+
+copy gitea to new user folder
+
+```
+$ sudo cp gitea /home/git
+```
+
+Run gitea command as git user. default port is 3000
+
+!!!! switch/login to git user
+
+```
+$ sudo su - git
+$./gitea web
+```
+!!!!
+
+********** cleanup
+
+```
+$ sudo userdel git
+$ sudo rm -rf /home/git
+```
+************
+
+open browser to `http://192.168.0.113:3000/install`
+
+install gitea configuration
+
+
+## Run Caddy service
+
+for x86
+
+```
+$ wget https://github.com/caddyserver/caddy/releases/download/v1.0.4/caddy_v1.0.4_linux_amd64.tar.gz -O caddy.tar.gz
+```
+
+for arm cpu
+
+```
+& wget https://github.com/caddyserver/caddy/releases/download/v1.0.4/caddy_v1.0.4_linux_arm7.tar.gz -O caddy.tar.gz
+```
+
+```
+$ mkdir caddy && tar -zxvf caddy.tar.gz -C caddy
+
+$ cd caddy
+$ mv caddy_linux_arm7 caddy
+```
+
+Create caddy config file named as Caddyfile and add the following content
+
+```
+$ sudo nano Caddyfile
+```
+
+```text
+homenetyth.dlinkddns.com {
+  proxy / 127.0.0.1:3000
+}
+```
+
+```
+$ sudo setcap CAP_NET_BIND_SERVICE=+eip ./caddy
+```
+
+install/update acme client
+
+```
+$ sudo apt-get install certbot
+```
+
+to check acme version
+
+install the script
+
+```
+$ curl https://get.acme.sh | sh
+```
+
+get version
+
+```
+$ acme.sh -v
+```
+
+!!!! run service
+
+```
+$ sudo ./caddy -conf Caddyfile
+```
+
+```text
+caddy login https://caddyserver.com/
+smarttvminix@gmail.com
+pass : yikth@7572137
+```
+
+Update Gitea config file  `custom/conf/app.ini`
+
+```text
+[server]
+SSH_DOMAIN = example.com
+HTTP_PORT  = 3000
+ROOT_URL   = https://example.com
+```
+
+```
+$ restart gitea service
+
+$ ./gitea web
+```
+
+```
+tmux
+```
+
+install go compiler
+
+```
+$ wget https://dl.google.com/go/go1.13.7.linux-armv6l.tar.gz -O golang.tar.gz
+
+$ sudo tar -C /usr/local -xzf golang.tar.gz
+
+$ sudo nano $HOME/.profile
+```
+
+add text
+
+```text
+export PATH=$PATH:/usr/local/go/bin
+```
+
+...
+
+reboot
+
+run go build
+
+```
+$ go get github.com/caddyserver/caddy/caddy
+```
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+Disable root login and password based login (Optional)
+
+For improved security, you may want to disable shell pasword based login if the server is accessible externally
+
+Edit the `/etc/ssh/sshd_config` file, enter:
+
+```
+$ sudo nano /etc/ssh/sshd_config
+```
+
+Set all this settings to no:
+
+```text
+ChallengeResponseAuthentication no
+PasswordAuthentication no
+UsePAM no
+PermitRootLogin no
+```
+
+Save and close the file. Reload the ssh server:
+
+```
+$ sudo systemctl reload ssh
+```
+
+Create user in Gitea to access Gitea