Add dependencies command

dependencies

@@ -1 +1,44 @@
 #!/usr/bin/env python3
+
+import os
+import sys
+import subprocess
+
+from .funtions import error, info
+
+
+def main(args):
+    packages = " ".join([
+        "ansible",
+        "python3",
+        "python3-dev",
+        "python3-pip",
+    ])
+
+    command = [
+        'apt',
+        'install',
+        '-y',
+        '--no-remove',
+        '-o Dpkg::Options::=--force-confdef',
+        '-o Dpkg::Options::=--force-confold',
+        'install',
+        packages
+    ]
+
+    environment = os.environ.copy()
+    environment.update({'DEBIAN_FRONTEND': 'noninteractive'})
+
+    try:
+        subprocess.check_output(
+            command,
+            env=environment,
+            stderr=subprocess.STDOUT
+        )
+        info("dependencies installed successfully")
+    except subprocess.CalledProcessError as exception:
+        error("dependencies: {}".format(str(exception)))
+
+
+if __name__ == '__main__':
+    main(sys.argv[:1])

functions

@@ -1 +1,13 @@
 #!/usr/bin/env python3
+
+from pprint import pprint
+
+
+def info(msg):
+    """Info level logging output."""
+    pprint("-----> INFO: dokku-deploy: {}".format(msg))
+
+
+def error(msg):
+    """Error level logging output."""
+    pprint("-----> ERROR: dokku-deploy: {}".format(msg))