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@@ -0,0 +1,102 @@
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+# notes on LCP in azure
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+
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+## WALinuxAgent / Waluigi
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+
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+Azure VMs "need" the WALinuxAgent. Home page is at
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+https://github.com/Azure/WALinuxAgent but there's a standard RHEL shipped RPM
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+for it too.
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+
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+
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+```
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+Name : WALinuxAgent
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+Version : 2.2.46
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+Release : 2.el7_9
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+Architecture: noarch
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+Install Date: Thu Oct 15 14:28:33 2020
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+Group : Development/Libraries
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+Size : 1904125
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+License : ASL 2.0
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+Signature : RSA/SHA256, Thu Jun 4 05:33:33 2020, Key ID 199e2f91fd431d51
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+Source RPM : WALinuxAgent-2.2.46-2.el7_9.src.rpm
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+Build Date : Wed Jun 3 10:40:07 2020
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+Build Host : x86-vm-26.build.eng.bos.redhat.com
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+Relocations : /usr
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+Packager : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
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+Vendor : Red Hat, Inc.
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+URL : https://github.com/Azure/WALinuxAgent
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+Summary : Microsoft Azure Linux Agent
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+Description :
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+The Azure Linux Agent supports the provisioning and running of Linux
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+VMs in the Azure cloud. This package should be installed on Linux disk
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+images that are built to run in the Azure environment.
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+```
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+
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+Default configuration for Waluigi in `/etc/waagent.conf` includes this gem:
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+
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+```
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+# Enable extension handling. Do not disable this unless you do not need password reset,
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+# backup, monitoring, or any extension handling whatsoever.
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+Extensions.Enabled=y
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+```
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+
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+Extensions enable the Azure control plane to do .. pretty much whatever it wants. But,
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+one of those things it can do is "enable backups" and clients like those so
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+here we are.
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+
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+## OMS Agent
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+
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+OMS Agent appears to be a log forwarder into Azure Log Analytics. Probably
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+installed by an "extension". This *appears* to be the thing that is clobbering
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+our syslog-ng configuration from time to time. It appears to be installed by an RPM:
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+
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+```
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+Name : omsagent
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+Version : 1.13.35
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+Release : 0
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+Architecture: x86_64
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+Install Date: Fri Mar 5 05:14:32 2021
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+Group : Applications/System
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+Size : 71658311
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+License : none
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+Signature : (none)
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+Source RPM : omsagent-1.13.35-0.src.rpm
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+Build Date : Wed Feb 17 04:23:20 2021
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+Build Host : d808ccce382f
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+Relocations : (not relocatable)
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+Vendor : http://www.microsoft.com
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+Summary : Microsoft Operations Management Suite for UNIX/Linux agent
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+Description :
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+Provides agent for the Microsoft Operations Management Suite.
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+```
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+
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+There's also a second-ish OMS Agent called "LAD" .. for "Azure Diagnostics Extension"
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+see https://docs.microsoft.com/en-us/azure/azure-monitor/agents/diagnostics-extension-overview and https://docs.microsoft.com/en-us/azure/virtual-machines/extensions/diagnostics-linux?toc=/azure/azure-monitor/toc.json
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+
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+I'm pretty sure the LAD version of the agent is the one wrecking everything...
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+
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+
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+## Random
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+
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+Somehow these systems have inspec on them too??
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+
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+```
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+Name : inspec
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+Version : 2.2.61
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+Release : 1.el7
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+Architecture: x86_64
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+Install Date: Tue Mar 10 21:05:53 2020
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+Group : default
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+Size : 175905773
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+License : Apache-2.0
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+Signature : DSA/SHA1, Thu Aug 9 14:19:53 2018, Key ID 2940aba983ef826a
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+Source RPM : inspec-2.2.61-1.el7.src.rpm
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+Build Date : Thu Aug 9 14:19:21 2018
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+Build Host : inspec-rhel-7-builder-5d5788.cd.chef.co
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+Relocations : /
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+Packager : Chef Software, Inc <maintainers@chef.io>
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+Vendor : Omnibus <omnibus@getchef.com>
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+URL : https://github.com/chef/inspec
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+Summary : The full stack of inspec
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+Description :
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+The full stack of inspec
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+```
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Duane Waddle