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fix: re-detect the cache address per job and prefer IPv4 (#1398)

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The cache address was detected once at startup, and the interface fallback ranked ethernet names above IPv4. A runner that started before DHCPv4 finished could advertise a global IPv6 address to IPv4-only job networks until it restarted, failing every artifact and cache call.

IPv4 now ranks first, and the address is detected again for each job unless `cache.host` sets it. Detecting an IPv6 address logs a warning.

Fixes: https://gitea.com/gitea/runner/issues/1379
Co-authored-by: silverwind <[email protected]>
Co-authored-by: silverwind <[email protected]>
Reviewed-on: https://gitea.com/gitea/runner/pulls/1398
Reviewed-by: silverwind <[email protected]>
Co-authored-by: bircni <[email protected]>
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bircnisilverwindsilverwind
 authored and silverwind committed 2026-11-07 06:41:25 +00:00
1 parent cd748053b0
commit 8e999cd039
10 files changed
+156 -51
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internal/app/run/proxy.go
+1 -1
View File
@@ -55,7 +55,7 @@ func JobProxyEnv(jobEnvs map[string]string, cacheURL string, serviceNames []stri
setPair("https_proxy", "HTTPS_PROXY", cfg.HTTPSProxy)
// no_proxy is merged rather than replaced: the hosts above are structural, and an
// operator cannot list the cache server's startup-assigned address in advance.
// operator cannot list the cache server's detected address in advance.
noProxy := appendNoProxy(cfg.NoProxy, direct...)
for _, name := range []string{"no_proxy", "NO_PROXY"} {
if existing, ok := jobEnvs[name]; ok {