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Add Zookeeper schema manager to zkhandler

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Adds a new class, ZKSchema, to handle schema management in Zookeeper in
an automated and consistent way. This should solve several issues:

1. Pain in managing changes to ZK keys
2. Pain in handling those changes during live upgrades
3. Simplifying the codebase to remove hardcoded ZK paths

The current master schema for PVC 0.9.19 is committed as version 0.

Addresses #129
This commit is contained in:
Joshua Boniface
2021-06-08 21:33:26 -04:00
parent 5843d8aff4
commit 126f0742cd
3 changed files with 409 additions and 1 deletions
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daemon-common/migrations/versions/0.json Normal file
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{"version": "0", "root": "", "base": {"schema": "/schema", "schema.version": "/schema/version", "config": "/config", "config.maintenance": "/config/maintenance", "config.primary_node": "/config/primary_node", "config.upstream_ip": "/config/upstream_ip", "config.migration_target_selector": "/config/migration_target_selector", "lock": "/locks", "lock.primary_node": "/locks/primary_node", "lock.flush_lock": "/locks/flush_lock", "lock.domain_migrate": "/locks/domain_migrate", "cmd": "/cmd", "cmd.nodes": "/cmd/nodes", "cmd.domains": "/cmd/domains", "cmd.ceph": "/cmd/ceph", "node": "/nodes", "domain": "/domains", "network": "/networks", "storage": "/ceph", "storage.util": "/ceph/util", "osd": "/ceph/osds", "pool": "/ceph/pools", "volume": "/ceph/volumes", "snapshot": "/ceph/snapshots"}, "node": {"keepalive": "/keepalive", "mode": "/daemonmode", "staticdata": "/static_data", "data.kernel": "/oskernelversion", "data.os": "/ostype", "data.arch": "/osarch", "counts.provisioned_domains": "/domainscount", "counts.running_domains": "/runningdomains", "counts.networks": "/networkscount", "state.daemon": "/daemonstate", "state.router": "/routerstate", "state.domain": "/domainstate", "vcpu.total": "/vcputotal", "vcpu.allocated": "/vcpualloc", "memory.total": "/memtotal", "memory.used": "/memused", "memory.free": "/memfree", "memory.allocated": "/memalloc", "memory.provisioned": "/memprov", "ipmi.hostname": "/ipmihostname", "ipmi.username": "/ipmiusername", "ipmi.password": "/ipmipassword"}, "domain": {"name": "", "xml": "/xml", "state": "/state", "profile": "/profile", "stats": "/stats", "node": "/node", "last_node": "/lastnode", "failed_reason": "/failedreason", "console.log": "/consolelog", "console.vnc": "/vnc", "meta.autostart": "/node_autostart", "meta.migrate_method": "/migration_method", "meta.node_selector": "/node_selector", "meta.node_limit": "/node_limit"}, "network": {"type": "/nettype", "rules": "/firewall_rules", "nameservers": "/name_servers", "domain": "/domain", "ip4.gateway": "/ip4_gateway", "ip4.network": "/ip4_network", "ip4.dhcp": "/dhcp4_flag", "ip4.reservations": "/dhcp4_reservations", "ip4.dhcp_start": "/dhcp4_start", "ip4.dhcp_end": "/dhcp4_end", "ip6.gateway": "/ip6_gateway", "ip6.network": "/ip6_network", "ip6.dhcp": "/dhcp6_flag"}, "osd": {"node": "/node", "device": "/device", "stats": "/stats"}, "pool": {"pgs": "/pgs", "stats": "/stats"}, "volume": {"stats": "/stats"}, "snapshot": {"stats": "/stats"}}