Add autodiscovery for build context in podman_image (#757)

Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>

plugins/modules/podman_image.py

@@ -443,6 +443,7 @@ RETURN = r"""
 """
 
 import json
+import os
 import re
 import shlex
 
@@ -529,9 +530,15 @@ class PodmanImageManager(object):
             digest_before = None
 
         if not image or self.force:
-            if self.path:
+            if self.state == 'build' or self.path:
                 # Build the image
-                self.results['actions'].append('Built image {image_name} from {path}'.format(image_name=self.image_name, path=self.path))
+                build_file = self.build.get('file') if self.build else None
+                if not self.path and build_file:
+                    self.path = os.path.dirname(build_file)
+                elif not self.path and not build_file:
+                    self.module.fail_json(msg='Path to build context or file is required when building an image')
+                self.results['actions'].append('Built image {image_name} from {path}'.format(
+                    image_name=self.image_name, path=self.path))
                 if not self.module.check_mode:
                     self.results['image'], self.results['stdout'] = self.build_image()
                     image = self.results['image']

tests/integration/targets/podman_image/tasks/main.yml

@@ -209,15 +209,34 @@
       register: oci_build3
       ignore_errors: true
 
-    - name: Build OCI image, point to location of Containerfile
+    - name: Build OCI image, point to location of Containerfile without path
       containers.podman.podman_image:
         executable: "{{ test_executable | default('podman') }}"
         name: testimage2
-        path: /var/tmp/build/subdir
+        state: build
         build:
           file: /var/tmp/build/Dockerfile
       register: oci_build4
 
+    - name: Build OCI image, point to location of Containerfile and path
+      containers.podman.podman_image:
+        executable: "{{ test_executable | default('podman') }}"
+        name: testimage3
+        path: /var/tmp/build
+        build:
+          file: /var/tmp/build/Dockerfile
+      register: oci_build5
+
+    - name: Build OCI image, point to location of Containerfile and path
+      containers.podman.podman_image:
+        executable: "{{ test_executable | default('podman') }}"
+        name: testimage5x
+        state: build
+        build:
+          format: oci
+      register: oci_build6
+      ignore_errors: true
+
     - name: Inspect first image
       containers.podman.podman_image_info:
         executable: "{{ test_executable | default('podman') }}"
@@ -237,7 +256,9 @@
           - oci_build2 is not changed
           - oci_build3 is not changed
           - oci_build3 is failed
-          - oci_build4 is changed
+          - oci_build4 is success
+          - oci_build5 is success
+          - oci_build6 is failed
           - "'localhost/testimage:latest' in testimage_info.images[0]['RepoTags'][0]"
           - "'localhost/testimage2:latest' in testimage2_info.images[0]['RepoTags'][0]"
           - "'no such file or directory' in oci_build3.msg"