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salt/add-amazon-ec2-detection-for-virtual-grains-bsc-1195.patch

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From 1434a128559df8183c032af722dc3d187bda148a Mon Sep 17 00:00:00 2001
From: Victor Zhestkov <Victor.Zhestkov@suse.com>
Date: Thu, 1 Sep 2022 14:46:24 +0300
Subject: [PATCH] Add Amazon EC2 detection for virtual grains
(bsc#1195624)
* Add ignore_retcode to quiet run functions
* Implement Amazon EC2 detection for virtual grains
* Add test for virtual grain detection of Amazon EC2
* Also detect the product of Amazon EC2 instance
* Add changelog entry
---
changelog/62539.added | 1 +
salt/grains/core.py | 18 ++++
salt/modules/cmdmod.py | 4 +
tests/pytests/unit/grains/test_core.py | 117 +++++++++++++++++++++++++
4 files changed, 140 insertions(+)
create mode 100644 changelog/62539.added
diff --git a/changelog/62539.added b/changelog/62539.added
new file mode 100644
index 0000000000..5f402d61c2
--- /dev/null
+++ b/changelog/62539.added
@@ -0,0 +1 @@
+Implementation of Amazon EC2 instance detection and setting `virtual_subtype` grain accordingly including the product if possible to identify.
diff --git a/salt/grains/core.py b/salt/grains/core.py
index 23d8b8ea42..047c33ffd3 100644
--- a/salt/grains/core.py
+++ b/salt/grains/core.py
@@ -1171,6 +1171,24 @@ def _virtual(osdata):
if grains.get("virtual_subtype") and grains["virtual"] == "physical":
grains["virtual"] = "virtual"
+ # Try to detect if the instance is running on Amazon EC2
+ if grains["virtual"] in ("qemu", "kvm", "xen"):
+ dmidecode = salt.utils.path.which("dmidecode")
+ if dmidecode:
+ ret = __salt__["cmd.run_all"](
+ [dmidecode, "-t", "system"], ignore_retcode=True
+ )
+ output = ret["stdout"]
+ if "Manufacturer: Amazon EC2" in output:
+ grains["virtual_subtype"] = "Amazon EC2"
+ product = re.match(
+ r".*Product Name: ([^\r\n]*).*", output, flags=re.DOTALL
+ )
+ if product:
+ grains["virtual_subtype"] = "Amazon EC2 ({})".format(product[1])
+ elif re.match(r".*Version: [^\r\n]+\.amazon.*", output, flags=re.DOTALL):
+ grains["virtual_subtype"] = "Amazon EC2"
+
for command in failed_commands:
log.info(
"Although '%s' was found in path, the current user "
diff --git a/salt/modules/cmdmod.py b/salt/modules/cmdmod.py
index a26220718a..07b6e100d2 100644
--- a/salt/modules/cmdmod.py
+++ b/salt/modules/cmdmod.py
@@ -932,6 +932,7 @@ def _run_quiet(
success_retcodes=None,
success_stdout=None,
success_stderr=None,
+ ignore_retcode=None,
):
"""
Helper for running commands quietly for minion startup
@@ -958,6 +959,7 @@ def _run_quiet(
success_retcodes=success_retcodes,
success_stdout=success_stdout,
success_stderr=success_stderr,
+ ignore_retcode=ignore_retcode,
)["stdout"]
@@ -980,6 +982,7 @@ def _run_all_quiet(
success_retcodes=None,
success_stdout=None,
success_stderr=None,
+ ignore_retcode=None,
):
"""
@@ -1012,6 +1015,7 @@ def _run_all_quiet(
success_retcodes=success_retcodes,
success_stdout=success_stdout,
success_stderr=success_stderr,
+ ignore_retcode=ignore_retcode,
)
diff --git a/tests/pytests/unit/grains/test_core.py b/tests/pytests/unit/grains/test_core.py
index 5c43dbdb09..7c4ea1f17f 100644
--- a/tests/pytests/unit/grains/test_core.py
+++ b/tests/pytests/unit/grains/test_core.py
@@ -2823,3 +2823,120 @@ def test_get_server_id():
with patch.dict(core.__opts__, {"id": "otherid"}):
assert core.get_server_id() != expected
+
+
+@pytest.mark.skip_unless_on_linux
+def test_virtual_set_virtual_ec2():
+ osdata = {}
+
+ (
+ osdata["kernel"],
+ osdata["nodename"],
+ osdata["kernelrelease"],
+ osdata["kernelversion"],
+ osdata["cpuarch"],
+ _,
+ ) = platform.uname()
+
+ which_mock = MagicMock(
+ side_effect=[
+ # Check with virt-what
+ "/usr/sbin/virt-what",
+ "/usr/sbin/virt-what",
+ None,
+ "/usr/sbin/dmidecode",
+ # Check with systemd-detect-virt
+ None,
+ "/usr/bin/systemd-detect-virt",
+ None,
+ "/usr/sbin/dmidecode",
+ # Check with systemd-detect-virt when no dmidecode available
+ None,
+ "/usr/bin/systemd-detect-virt",
+ None,
+ None,
+ ]
+ )
+ cmd_run_all_mock = MagicMock(
+ side_effect=[
+ # Check with virt-what
+ {"retcode": 0, "stderr": "", "stdout": "xen"},
+ {
+ "retcode": 0,
+ "stderr": "",
+ "stdout": "\n".join(
+ [
+ "dmidecode 3.2",
+ "Getting SMBIOS data from sysfs.",
+ "SMBIOS 2.7 present.",
+ "",
+ "Handle 0x0100, DMI type 1, 27 bytes",
+ "System Information",
+ " Manufacturer: Xen",
+ " Product Name: HVM domU",
+ " Version: 4.11.amazon",
+ " Serial Number: 12345678-abcd-4321-dcba-0123456789ab",
+ " UUID: 01234567-dcba-1234-abcd-abcdef012345",
+ " Wake-up Type: Power Switch",
+ " SKU Number: Not Specified",
+ " Family: Not Specified",
+ "",
+ "Handle 0x2000, DMI type 32, 11 bytes",
+ "System Boot Information",
+ " Status: No errors detected",
+ ]
+ ),
+ },
+ # Check with systemd-detect-virt
+ {"retcode": 0, "stderr": "", "stdout": "kvm"},
+ {
+ "retcode": 0,
+ "stderr": "",
+ "stdout": "\n".join(
+ [
+ "dmidecode 3.2",
+ "Getting SMBIOS data from sysfs.",
+ "SMBIOS 2.7 present.",
+ "",
+ "Handle 0x0001, DMI type 1, 27 bytes",
+ "System Information",
+ " Manufacturer: Amazon EC2",
+ " Product Name: m5.large",
+ " Version: Not Specified",
+ " Serial Number: 01234567-dcba-1234-abcd-abcdef012345",
+ " UUID: 12345678-abcd-4321-dcba-0123456789ab",
+ " Wake-up Type: Power Switch",
+ " SKU Number: Not Specified",
+ " Family: Not Specified",
+ ]
+ ),
+ },
+ # Check with systemd-detect-virt when no dmidecode available
+ {"retcode": 0, "stderr": "", "stdout": "kvm"},
+ ]
+ )
+
+ with patch("salt.utils.path.which", which_mock), patch.dict(
+ core.__salt__,
+ {
+ "cmd.run": salt.modules.cmdmod.run,
+ "cmd.run_all": cmd_run_all_mock,
+ "cmd.retcode": salt.modules.cmdmod.retcode,
+ "smbios.get": salt.modules.smbios.get,
+ },
+ ):
+
+ virtual_grains = core._virtual(osdata.copy())
+
+ assert virtual_grains["virtual"] == "xen"
+ assert virtual_grains["virtual_subtype"] == "Amazon EC2"
+
+ virtual_grains = core._virtual(osdata.copy())
+
+ assert virtual_grains["virtual"] == "kvm"
+ assert virtual_grains["virtual_subtype"] == "Amazon EC2 (m5.large)"
+
+ virtual_grains = core._virtual(osdata.copy())
+
+ assert virtual_grains["virtual"] == "kvm"
+ assert "virtual_subtype" not in virtual_grains
--
2.37.3
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