KVM High Availability regardless of storage#4978

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GabrielBrascher wants to merge 40 commits into

apache:mainfrom

CLDIN:kvm-ha-microservice-client

Commits on Mar 4, 2022

HA Agent check regardless of NFS
GabrielBrascher
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Add KVM HA Client validation on HA execution flow
GabrielBrascher
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kvm: Add Agent Helper to investigate if a Host is truly down

wido
authored and
GabrielBrascher
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Integrating Agent HA Helper
GabrielBrascher
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Count number of VMs running on Define if a host is healthy by counting the number of VMs on Agent and comparing with DB
GabrielBrascher
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Add global settings configurations; enhance documentation; work on tests
GabrielBrascher
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Remove commented lines
GabrielBrascher
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Consider Paused instances to count when a VM is being migrated and already "placed" on the host (memory is already being allocated but it is not processing) but not yet resumed.
GabrielBrascher
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Final adjustments before calling for review
GabrielBrascher
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Refactoring tests and adding small improvements
GabrielBrascher
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Fix missing parameter on log String.format
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Update code addressing reviewers
GabrielBrascher
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Simplify code flow, enhance Python, address reviewers.
GabrielBrascher
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Create KvmHaHelper class. Enhance HA validations by checking if host is reachable by neighbour hosts as well as validating if the cluster is "problematic"
GabrielBrascher
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Fix checkstyle
GabrielBrascher
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Add tests and enhance HA flow via new KvmHaHelper
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Fix isKvmHaWebserviceEnabled
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Add test cases and config key
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Change KvmHaAcceptedProblematicHostsRatio config key description
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Address reviewer enhancing log and 'if' conditional
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Enhance Documentation & remove unnecessary Catch (them all)
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Fine adjustments
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Re-check packaging
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Changes on centos7 packaging for agent-ha-helper
GabrielBrascher
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Remove unnecessary line after rebasing and fixing conflicts with main
GabrielBrascher
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Remove nested IF in KvmHaHelper
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Address review removing nested IF and enhancing KvmHaAgentClient.prepareHttpRequestForUrl(String)
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change header
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Fix cloud.spec with permissions for cloudstack-agent-ha-helper
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Use Stream instead of For loop.
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Use Cluster scope for KvmHaAcceptedProblematicHostsRatio
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Remove unused variable
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Enhance KVM HA checks via neighbour hosts.
GabrielBrascher
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Enhance isKvmHaWebserviceEnabled
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Avoid issues in case of big cluster, and thus limit number of rertries of isHostAgentReachableByNeighbour.
GabrielBrascher
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Port python HTTP client to HTTPS
GabrielBrascher
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Rebase against main branch, fix test erros after updating default port for KvmHaClient.
GabrielBrascher
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Add SSL & Authentication support into the agent-ha-helper.py
GabrielBrascher
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Update KVM HA Client to mach with KVM HA Helper HTTPS server.
GabrielBrascher
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Commits on Mar 9, 2022

Update "check-neighbour" and client/server HTTPs with Auth
GabrielBrascher
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