S1 partial replication - #19
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Add optional per-repository partial replication configuration to the
stratum1 role, inserted between the server options include and the
initial snapshot is already partial.
Driven by an optional per-repo dict:
cvmfs_repositories[*].partial_replication:
enabled: true
paths: [/software/linux/x86_64/amd/zen4, /software/linux/x86_64/amd/zen5]
When enabled it writes partial-replication.spec (version 1 + paths) and
sets CVMFS_PARTIAL_REPLICATION=true and CVMFS_PARTIAL_REPLICATION_SPEC in
the repo server.conf before the initial snapshot. When not enabled (or
enabled: false) it removes that config, restoring full-sync fallback.
Partial replication requires CVMFS 2.14.0+.
Co-Authored-by: Pi (asc/moonshotai/Kimi-K3) <pi-coding-agent>
Ansible rejects 'loop' on a block, which made the full-sync fallback cleanup fail at runtime. Split it into two plain tasks, each carrying its own loop/when.
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Add optional per-repository client configuration for consuming a
partial Stratum 1 (CernVM-FS >= 2.14.0), driven by:
cvmfs_repositories[*].partial_replica_client:
enabled: true
mode: failover | fail
server_url: ... # optional per-repo override
full_stratum1_url: ... # required for failover
For enabled repos it writes /etc/cvmfs/config.d/<fqrn>.local with
CVMFS_PARTIAL_REPLICA_MODE, CVMFS_FULL_STRATUM1_URL (failover) and an
optional CVMFS_SERVER_URL override pointing at the partial replica.
config.d/<fqrn>.local is parsed last in the client config chain, so it
overrides domain-level settings; the file is treated as fully managed.
Disabled or absent config removes the file (full-replica fallback).
Note: repositories.d/<fqrn>/client.conf (used by client_options) is NOT
read by the client mount chain (see OptionsManager::ParseDefault), so
partial replica parameters must not go there.
Co-Authored-by: Pi (asc/moonshotai/Kimi-K3) <pi-coding-agent>
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This adds some ansible tasks to the eessi.cvmfs role that enables partial the partial replication feature introduced by cvmfs v2.14.0.
usage:
Note: the anisble code in this PR was generated using the pi coding agent running deepseek-v4-flash-284b