add fabric 2 sample

Author: twotwo

.gitignore

@@ -91,3 +91,5 @@ ENV/
 
 # Rope project settings
 .ropeproject
+*/.pytest_cache/
+.vscode

fabric2-sample/README.md

@@ -0,0 +1,36 @@
+# fabric2-sample
+
+use fabric v2 to execute shell commands remotely over SSH.
+
+[Tutorial](https://docs.fabfile.org/en/2.5/getting-started.html#addendum-the-fab-command-line-tool)
+
+## Running on host
+
+```bash
+# create virtual env
+$ virtualenv venv -p python3 && source venv/bin/activate
+$ pip install --upgrade pip && \
+  pip install -r requirements.txt && \
+  pip install -r requirements-dev.txt
+```
+
+[Command-line interface](https://docs.fabfile.org/en/2.5/cli.html)
+
+```bash
+# running command
+$ fab --list
+$ fab -H dev.gpu install-zsh
+```
+
+[Configuration](https://docs.fabfile.org/en/2.5/concepts/configuration.html) ./fabric.yaml
+
+```yaml
+connect_kwargs:
+  password: welcome-to-heaven
+sudo:
+  password: welcome-to-heaven
+timeouts: 
+  connect: 10
+user: god
+port: 22
+```

fabric2-sample/fabfile.py

@@ -0,0 +1,27 @@
+from fabric import Connection, task
+
+
+@task
+def install_zsh(c):
+    """install oh-my-zsh
+
+    c [context](http://docs.pyinvoke.org/en/latest/api/context.html)
+
+    https://github.com/ohmyzsh/ohmyzsh
+    """
+    c.run("echo $SHELL")
+    # http://docs.pyinvoke.org/en/latest/api/runners.html
+    if c.run("test -d ~/.oh-my-zsh", warn=True).failed:
+        print("install zsh")
+        c.sudo("apt install zsh -y")
+        print("install oh-my-zsh")
+        # c.run('sh -c "$(wget -O- https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"')
+        c.put("install.sh", "/tmp/install.sh")
+        c.run("sh /tmp/install.sh")
+    # c.sudo("chsh -s $(which zsh)", warn=True)
+    if c.run("test -f ~/.zshrc", warn=True).ok:
+        print(f"install on {c.config['user']}@{c.host}")
+
+    # c.run("source ~/.zshrc", shell="/bin/zsh", env={})
+    # c.run("omz theme use ys")
+    # c.run("omz update")

fabric2-sample/requirements-dev.txt

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+--index https://mirrors.aliyun.com/pypi/simple
+black>=20.8b1
+isort>=5.6.0
+mypy==0.790
+pytest>=6.1.0

fabric2-sample/requirements.txt

@@ -0,0 +1,3 @@
+--index https://mirrors.aliyun.com/pypi/simple
+fabric==2.5.0
+python-dotenv>=0.15.0

fabric2-sample/ssh_config

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+# https://docs.fabfile.org/en/2.5/concepts/configuration.html#ssh-config
+Host *
+     ConnectTimeout 10
+     ForwardAgent no
+     ForwardX11 no
+     ForwardX11Trusted yes
+     User tx-deepocean
+     Port 22
+     Protocol 2
+     connect_kwargs tx-deepocean tuixiang2017

fabric2-sample/util_cli.py

@@ -0,0 +1,10 @@
+# https://docs.python.org/zh-cn/3/library/subprocess.html
+import logging
+import subprocess
+
+
+def run(cmd, verbose=True) -> None:
+    """Run Command, use stdout as output"""
+    if verbose:
+        logging.debug(cmd)
+    subprocess.run(args=cmd, shell=True, check=True)