Container: support not having a build job and new methods

shlax/container.py

@@ -1,12 +1,17 @@
+import copy
 import os
 
 from .image import Image
 
 
 class Container:
-    def __init__(self, build=None, image=None):
+    def __init__(self, build=None, image=None, env=None, volumes=None):
         self.build = build
-        self.image = self.build.image
+        self.image = image or self.build.image
+        if isinstance(self.image, str):
+            self.image = Image(self.image)
+        self.volumes = volumes or {}
+        self.env = env or {}
         prefix = os.getcwd().split('/')[-1]
         repo = self.image.repository.replace('/', '-')
         if prefix == repo:
@@ -14,19 +19,44 @@ class Container:
         else:
             self.name = '-'.join([prefix, repo])
 
-    async def start(self, target):
+    async def up(self, target, *args):
-        """Start the container"""
+        """Start the container foreground"""
-        await target.rexec(
+        cmd = [
             'podman',
             'run',
+        ] + list(args)
+
+        for src, dest in self.volumes.items():
+            cmd += ['--volume', ':'.join([src, dest])]
+
+        for src, dest in self.env.items():
+            cmd += ['--env', '='.join([src, str(dest)])]
+
+        cmd += [
             '--name',
             self.name,
             str(self.image),
-        )
+        ]
+        await target.exec(*cmd)
+
+    async def start(self, target):
+        """Start the container background"""
+        await self.up(target, '-d')
 
     async def stop(self, target):
         """Start the container"""
-        await target.rexec('podman', 'stop', self.name)
+        await target.exec('podman', 'stop', self.name)
+
+    async def down(self, target):
+        """Start the container"""
+        await target.exec('podman', 'rm', '-f', self.name, raises=False)
+
+    async def apply(self, target):
+        """Start the container"""
+        if self.build:
+            await target(self.build)
+        await target(self.down)
+        await target(self.start)
 
     def __str__(self):
-        return f'Container(name={self.name}, image={self.image})'
+        return f'Container(name={self.name}, image={self.image}, volumes={self.volumes})'