distribution: Add Amazon Linux distribution facts (#73767)

* Update Amazon Linux Distribution facts gathering logic
* Update tests

Fixes: #73742

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

changelogs/fragments/73742_amazon_distribution.yml

@@ -0,0 +1,2 @@
+minor_changes:
+- distribution - add facts about Amazon Linux Distribution facts (https://github.com/ansible/ansible/issues/73742).

lib/ansible/module_utils/facts/system/distribution.py

@@ -59,6 +59,7 @@ class DistributionFiles:
         {'path': '/etc/redhat-release', 'name': 'RedHat'},
         {'path': '/etc/vmware-release', 'name': 'VMwareESX', 'allowempty': True},
         {'path': '/etc/openwrt_release', 'name': 'OpenWrt'},
+        {'path': '/etc/os-release', 'name': 'Amazon'},
         {'path': '/etc/system-release', 'name': 'Amazon'},
         {'path': '/etc/alpine-release', 'name': 'Alpine'},
         {'path': '/etc/arch-release', 'name': 'Archlinux', 'allowempty': True},
@@ -222,9 +223,17 @@ class DistributionFiles:
         if 'Amazon' not in data:
             return False, amazon_facts
         amazon_facts['distribution'] = 'Amazon'
+        if path == '/etc/os-release':
+            version = re.search(r"VERSION_ID=\"(.*)\"", data)
+            if version:
+                amazon_facts['distribution_version'] = version.group(1)
+                amazon_facts['distribution_major_version'] = version.group(1).split('.')[0]
+                amazon_facts['distribution_minor_version'] = version.group(1).split('.')[1]
+        else:
             version = [n for n in data.split() if n.isdigit()]
             version = version[0] if version else 'NA'
             amazon_facts['distribution_version'] = version
+
         return True, amazon_facts
 
     def parse_distribution_file_OpenWrt(self, name, data, path, collected_facts):

test/units/module_utils/facts/system/distribution/fixtures/amazon_linux_2.json

@@ -0,0 +1,34 @@
+{
+    "platform.dist": [
+        "",
+        "",
+        ""
+    ],
+    "input": {
+        "/etc/system-release": "Amazon Linux release 2",
+        "/etc/os-release": ""
+    },
+    "name": "Amazon Linux 2",
+    "result": {
+        "distribution_release": "NA",
+        "distribution": "Amazon",
+        "distribution_major_version": "2",
+        "os_family": "RedHat",
+        "distribution_version": "2"
+    },
+    "distro": {
+        "id": "amzn",
+        "version": "2",
+        "codename": "",
+        "os_release_info": {
+            "name": "Amazon Linux AMI",
+            "ansi_color": "0;33",
+            "id_like": "rhel fedora",
+            "version_id": "2",
+            "pretty_name": "Amazon Linux release 2",
+            "version": "2",
+            "home_url": "",
+            "id": "amzn"
+        }
+    }
+}

test/units/module_utils/facts/system/distribution/fixtures/amazon_linux_2016.03.json

@@ -0,0 +1,40 @@
+{
+    "name": "Amazon 2016.03",
+    "platform.release": "4.14.94-73.73.amzn1.x86_64",
+    "result": {
+        "distribution_release": "NA",
+        "distribution": "Amazon",
+        "distribution_major_version": "2016",
+        "distribution_minor_version": "03",
+        "os_family": "RedHat",
+        "distribution_version": "2016.03"
+    },
+    "platform.dist": [
+        "amzn",
+        "2016.03",
+        ""
+    ],
+    "input": {
+        "/etc/os-release": "NAME=\"Amazon Linux AMI\"\nVERSION=\"2016.03\"\nID=\"amzn\"\nID_LIKE=\"rhel fedora\"\nVERSION_ID=\"2016.03\"\nPRETTY_NAME=\"Amazon Linux AMI 2016.03\"\nANSI_COLOR=\"0;33\"\nCPE_NAME=\"cpe:/o:amazon:linux:2016.03:ga\"\nHOME_URL=\"http://aws.amazon.com/amazon-linux-ami/\"\n",
+        "/etc/system-release": "Amazon Linux AMI release 2016.03\n"
+    },
+    "distro": {
+        "version_best": "2016.03",
+        "os_release_info": {
+            "name": "Amazon Linux AMI",
+            "ansi_color": "0;33",
+            "id_like": "rhel fedora",
+            "version_id": "2016.03",
+            "pretty_name": "Amazon Linux AMI 2016.03",
+            "version": "2016.03",
+            "home_url": "http://aws.amazon.com/amazon-linux-ami/",
+            "cpe_name": "cpe:/o:amazon:linux:2016.03:ga",
+            "id": "amzn"
+        },
+        "version": "2016.03",
+        "codename": "",
+        "lsb_release_info": {},
+        "id": "amzn",
+        "name": "Amazon Linux AMI"
+    }
+}

test/units/module_utils/facts/system/distribution/fixtures/amazon_linux_2018.03.json

@@ -0,0 +1,40 @@
+{
+    "name": "Amazon 2018.03",
+    "platform.release": "4.14.94-73.73.amzn1.x86_64",
+    "result": {
+        "distribution_release": "NA",
+        "distribution": "Amazon",
+        "distribution_major_version": "2018",
+        "distribution_minor_version": "03",
+        "os_family": "RedHat",
+        "distribution_version": "2018.03"
+    },
+    "platform.dist": [
+        "amzn",
+        "2018.03",
+        ""
+    ],
+    "input": {
+        "/etc/os-release": "NAME=\"Amazon Linux AMI\"\nVERSION=\"2018.03\"\nID=\"amzn\"\nID_LIKE=\"rhel fedora\"\nVERSION_ID=\"2018.03\"\nPRETTY_NAME=\"Amazon Linux AMI 2018.03\"\nANSI_COLOR=\"0;33\"\nCPE_NAME=\"cpe:/o:amazon:linux:2018.03:ga\"\nHOME_URL=\"http://aws.amazon.com/amazon-linux-ami/\"\n",
+        "/etc/system-release": "Amazon Linux AMI release 2018.03\n"
+    },
+    "distro": {
+        "version_best": "2018.03",
+        "os_release_info": {
+            "name": "Amazon Linux AMI",
+            "ansi_color": "0;33",
+            "id_like": "rhel fedora",
+            "version_id": "2018.03",
+            "pretty_name": "Amazon Linux AMI 2018.03",
+            "version": "2018.03",
+            "home_url": "http://aws.amazon.com/amazon-linux-ami/",
+            "cpe_name": "cpe:/o:amazon:linux:2018.03:ga",
+            "id": "amzn"
+        },
+        "version": "2018.03",
+        "codename": "",
+        "lsb_release_info": {},
+        "id": "amzn",
+        "name": "Amazon Linux AMI"
+    }
+}

test/units/module_utils/facts/system/distribution/fixtures/amazon_linux_2_karoo.json

@@ -0,0 +1,34 @@
+{
+    "platform.dist": [
+        "",
+        "",
+        ""
+    ],
+    "input": {
+        "/etc/system-release": "Amazon Linux release 2 (Karoo)",
+        "/etc/os-release": ""
+    },
+    "name": "Amazon Linux 2 - Karoo",
+    "result": {
+        "distribution_release": "NA",
+        "distribution": "Amazon",
+        "distribution_major_version": "2",
+        "os_family": "RedHat",
+        "distribution_version": "2"
+    },
+    "distro": {
+        "id": "amzn",
+        "version": "2",
+        "codename": "",
+        "os_release_info": {
+            "name": "Amazon Linux AMI",
+            "ansi_color": "0;33",
+            "id_like": "rhel fedora",
+            "version_id": "2",
+            "pretty_name": "Amazon Linux release 2 (Karoo)",
+            "version": "2",
+            "home_url": "https://amazonlinux.com/",
+            "id": "amzn"
+        }
+    }
+}