rename

ssh_lib/utils.py

@@ -0,0 +1,145 @@
+import os
+import secrets
+import string
+
+
+def put(c, local_path, remote_path, permissions=None, owner='root', group=None):
+    tmp_path = f'/tmp/fabtmp_{random_string(8)}'
+    c.put(local_path, tmp_path)
+
+    if is_dir(c, remote_path):
+        if not remote_path.endswith('/'):
+            remote_path += '/'
+
+        filename = os.path.basename(local_path)
+        remote_path += filename
+
+    c.sudo(f"mv '{tmp_path}' '{remote_path}'")
+    c.sudo(f"rm -rf '{tmp_path}'")
+
+    set_permission(c, remote_path, permissions, owner, group)
+
+
+def put_str(c, remote_path, str_):
+    tmp_file = 'tmp.txt'
+    with open(tmp_file, 'w') as outfile:
+        outfile.write(str_ + '\n')
+    put(c, tmp_file, remote_path)
+    os.remove(tmp_file)
+
+
+def append_str(c, remote_path, str_):
+    tmp_path = f'/tmp/fabtmp_{random_string(8)}'
+    put_str(c, tmp_path, str_)
+
+    sudo_cmd(c, f"cat '{tmp_path}' >> '{remote_path}'")
+    c.sudo(f'rm -f {tmp_path}')
+
+
+def sudo_cmd(c, cmd):
+    cmd = cmd.replace('"', '\\"')
+    c.sudo(f'bash -c "{cmd}"')
+
+
+def set_permission(c, path, permissions=None, owner=None, group=None):
+    if owner:
+        if not group:
+            group = owner
+
+        c.sudo(f"chown {owner}:{group} '{path}'")
+
+    if permissions:
+        c.sudo(f"chmod {permissions} '{path}'")
+
+
+def reboot(c):
+    print('Rebooting')
+    try:
+        c.sudo('reboot')
+    except Exception:
+        pass
+
+
+def exists(c, path):
+    return c.sudo(f"test -e '{path}'", hide=True, warn=True).ok
+
+
+def is_dir(c, path):
+    return c.sudo(f"test -d '{path}'", hide=True, warn=True).ok
+
+
+def random_string(length):
+    return ''.join(secrets.choice(string.ascii_uppercase + string.digits) for _ in range(length))
+
+
+def ubuntu_release(c):
+    return c.run('lsb_release -rs').stdout.strip()[:2]
+
+
+def ubuntu_codename(c):
+    return c.run('lsb_release -cs').stdout.strip()
+
+
+def apt_get_update(c):
+    c.sudo('apt-get update')
+
+
+def apt_get_install(c, pkgs, warn=False):
+    c.sudo(
+        f'DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends {pkgs}',
+        warn=warn,
+    )
+
+
+def apt_get_purge(c, pkgs):
+    c.sudo(f'DEBIAN_FRONTEND=noninteractive apt-get purge -y {pkgs}')
+
+
+def apt_get_autoremove(c):
+    c.sudo('DEBIAN_FRONTEND=noninteractive apt-get autoremove -y')
+
+
+def get_username(c):
+    return c.run('whoami').stdout.strip()
+
+
+def add_user(c, username, passwd=None):
+    # ssh-key login only
+    c.sudo(f'adduser --disabled-password --gecos "" {username}', warn=True)
+    if passwd:
+        c.sudo(f'echo "{username}:{passwd}" | chpasswd')
+
+
+def remove_user(c, username):
+    c.sudo(f'userdel -r {username}', warn=True)
+    c.sudo(f'rm -rf /home/{username}')
+
+
+def enable_sudo(c, username):
+    c.sudo(f'usermod -aG sudo {username}')
+
+
+def ssh_copy_id(c, username, key_file_path):
+    with open(key_file_path) as fp:
+        public_key_str = fp.read()
+
+    if username == 'root':
+        home_dir = '/root'
+    else:
+        home_dir = f'/home/{username}'
+
+    ssh_dir = f'{home_dir}/.ssh'
+
+    c.sudo(f'mkdir -p {ssh_dir}')
+    c.sudo(f'chown {username}:{username} {ssh_dir}')
+
+    put_str(c, f'{ssh_dir}/authorized_keys', public_key_str)
+    set_permission(c, f'{ssh_dir}/authorized_keys', '400', username, username)
+
+
+def setup_time(c):
+    apt_get_install(c, 'dbus')
+
+    c.sudo('timedatectl set-local-rtc 0')
+    c.sudo('timedatectl set-ntp 1')
+    c.sudo('timedatectl set-timezone UTC')