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https://gitea.com/gitea/act_runner.git
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bircniandsilverwind
be90c01468
The cache server retired entries 30 days after creation regardless of use, so a job that ran often enough to keep its cache warm still lost it on a fixed schedule. Nothing bounded the disk either. Retention now counts from last access alone, and a repository over its limit sheds least recently accessed entries until it fits, enforced on commit as well as on the periodic sweep. ```yaml cache: retention: 168h # remove entries not accessed for seven days repo_size_limit: 10GB # cap each repository size_limit: 0 # cap the whole cache, off by default sweep_interval: 1h # minimum time between sweeps ``` Sizes accept `10GB`, `512mb`, `1TiB` or a plain byte count, binary either way. Leave a key out for its default; `0` turns a limit off, and `0s` does the same for `retention`. Whatever these allow, the cache also sheds entries to keep free space above `health_check.min_free_disk_space_mb` when health checks are enabled, so it cannot grow past the point where the runner stops accepting work. Supporting fixes: serving an entry stamps its access time, so a find cannot hand a job a download URL for an entry the next eviction is about to remove; an entry larger than the limit is dropped on its own account rather than emptying its repository to make room; and a blob that cannot be unlinked keeps its row, so the next sweep retries instead of orphaning bytes no limit can account for. Closes https://gitea.com/gitea/runner/issues/1168 --------- Co-authored-by: silverwind <me@silverwind.io> Reviewed-on: https://gitea.com/gitea/runner/pulls/1170 Reviewed-by: silverwind <2021+silverwind@noreply.gitea.com>
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package cmd
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import (
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"errors"
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"fmt"
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"os"
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"os/signal"
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"gitea.com/gitea/runner/act/artifactcache"
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"gitea.com/gitea/runner/internal/app/run"
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"gitea.com/gitea/runner/internal/pkg/config"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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type cacheServerArgs struct {
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Dir string
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Host string
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Port uint16
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}
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func runCacheServer(configFile *string, cacheArgs *cacheServerArgs) func(cmd *cobra.Command, args []string) error {
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return func(cmd *cobra.Command, args []string) error {
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cfg, err := config.LoadDefault(*configFile)
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if err != nil {
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return fmt.Errorf("invalid configuration: %w", err)
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}
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initLogging(cfg)
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var (
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dir = cfg.Cache.Dir
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host = cfg.Cache.Host
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port = cfg.Cache.Port
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)
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// cacheArgs has higher priority
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if cacheArgs.Dir != "" {
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dir = cacheArgs.Dir
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}
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if cacheArgs.Host != "" {
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host = cacheArgs.Host
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}
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if cacheArgs.Port != 0 {
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port = cacheArgs.Port
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}
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secret := cfg.Cache.ExternalSecret
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if secret == "" {
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return errors.New("cache.external_secret (or cache.external_secret_file) must be set for cache-server; configure the same value on each runner that points at this server via cache.external_server")
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}
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cacheHandler, err := artifactcache.StartHandler(artifactcache.Options{
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Dir: dir,
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OutboundIP: host,
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Port: port,
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InternalSecret: secret,
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Policy: run.CachePolicy(cfg),
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Logger: log.StandardLogger().WithField("module", "cache_request"),
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})
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if err != nil {
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return err
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}
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log.Infof("cache server is listening on %v", cacheHandler.ExternalURL())
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c := make(chan os.Signal, 1)
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signal.Notify(c, os.Interrupt)
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<-c
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return nil
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}
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}
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