本篇的源码放在： https://github.com/backendcloud/example/tree/master/bazel-remote
使用以前发过的文章Bazel Golang hello-world里的 bazel-hello-go 项目。
配置使用bazel remote cache。可以bazel命令行增加--remote_cache=参数，但是需要每条命令都加。为了简便可以将其配置到配置文件中。
⚡ root@backendcloud ~/bazel-remote cat .bazelrc
build --remote_cache=http://localhost:9090
build --remote_timeout=150先测试下配置了remote cache但是bazel remote server没有开启的情况。
根据remote cache 配置，优先使用远程的 bazel server 的缓存，若这个时候 bazel server 服务还没有开启，没有找到，则给出warning，然后本地构建，缓存到本地。
代码语言：javascript复制 ⚡ root@backendcloud ~/bazel-remote bazel clean
INFO: Invocation ID: d52888ef-fa20-4265-8029-df762db9795b
INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
⚡ root@backendcloud ~/bazel-remote bazel build //main:main
INFO: Invocation ID: 59559957-eb61-4eb7-b4d4-8f8709753dc8
INFO: Analyzed target //main:main (51 packages loaded, 8558 targets configured).
INFO: Found 1 target...
WARNING: Remote Cache: Connection refused: localhost/127.0.0.1:9090
WARNING: Remote Cache: 3 errors during bulk transfer:
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
WARNING: Remote Cache: 4 errors during bulk transfer:
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: localhost/127.0.0.1:9090
Target //main:main up-to-date:
bazel-bin/main/main_/main
INFO: Elapsed time: 1.462s, Critical Path: 0.75s
INFO: 8 processes: 4 internal, 4 linux-sandbox.
INFO: Build completed successfully, 8 total actions现在开启 bazel server。
代码语言：javascript复制 ⚡ root@backendcloud ~ docker pull buchgr/bazel-remote-cache
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
✔ docker.io/buchgr/bazel-remote-cache:latest
Trying to pull docker.io/buchgr/bazel-remote-cache:latest...
Getting image source signatures
Copying blob 51747f63bf0a done Copying blob e8614d09b7be done Copying blob c6f4d1a13b69 done Copying blob 97bfab678aab done Copying config b2b137a75a done Writing manifest to image destination
Storing signatures
b2b137a75a4fe036a5641c2ac174058bdcb4b53c9567881b21d6cea6d177c89c
⚡ root@backendcloud ~/bazel-remote docker run -u 1000:1000 -v /root/bazel-remote/dummy-remote-cache:/data -p 9090:8080 -p 9092:9092 buchgr/bazel-remote-cache正常构建，没有之前构建找不到remote server的warning。
代码语言：javascript复制 ⚡ root@backendcloud ~/bazel-remote bazel clean
INFO: Invocation ID: 8b5f8fdb-5726-4a6e-bb78-397a13e0fb3a
INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
⚡ root@backendcloud ~/bazel-remote bazel build //main:main
INFO: Invocation ID: 26ecf58b-f38b-4704-88f8-e4b363d76dd6
INFO: Analyzed target //main:main (51 packages loaded, 8558 targets configured).
INFO: Found 1 target...
Target //main:main up-to-date:
bazel-bin/main/main_/main
INFO: Elapsed time: 0.776s, Critical Path: 0.13s
INFO: 8 processes: 4 remote cache hit, 4 internal.
INFO: Build completed successfully, 8 total actions检查bazel remote server cache的日志：
代码语言：javascript复制 ⚡ root@backendcloud ~/bazel-remote docker run -u 1000:1000 -v /root/bazel-remote/dummy-remote-cache:/data -p 9090:8080 -p 9092:9092 buchgr/bazel-remote-cache
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.2022/08/01 05:50:13 bazel-remote built with go1.18.4 from git commit 951cb59c415abc46a67412a6e9206fc6c00da40d.2022/08/01 05:50:13 Initial RLIMIT_NOFILE cur: 1048576 max: 10485762022/08/01 05:50:13 Setting RLIMIT_NOFILE cur: 1048576 max: 10485762022/08/01 05:50:13 Storage mode: zstd2022/08/01 05:50:13 Zstandard implementation: go2022/08/01 05:50:13 Limiting concurrent file removals to 50002022/08/01 05:50:13 Loading existing files in /data.2022/08/01 05:50:13 Sorting cache files by atime.2022/08/01 05:50:13 Building LRU index.2022/08/01 05:50:13 Finished loading disk cache files.2022/08/01 05:50:13 Loaded 17 existing disk cache items.2022/08/01 05:50:13 Authentication: disabled2022/08/01 05:50:13 Mangling non-empty instance names with AC keys: disabled2022/08/01 05:50:13 gRPC AC dependency checks: enabled2022/08/01 05:50:13 experimental gRPC remote asset API: disabled2022/08/01 05:50:13 Starting gRPC server on address :90922022/08/01 05:50:13 Starting HTTP server for profiling on address :60602022/08/01 05:50:13 Starting HTTP server on address :80802022/08/01 05:50:13 HTTP AC validation: enabled2022/08/01 05:50:33 GRPC CAS HEAD c93640c39c0d364a4370b6fc6a8393197333f1b9f53485f452ab376afc51ffbd OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GET 200 10.88.0.1 /ac/d1a6a5be479277f96215c18989d1575fa7864210f85fca08b738bd4737dec72c2022/08/01 05:50:33 GET 200 10.88.0.1 /cas/c93640c39c0d364a4370b6fc6a8393197333f1b9f53485f452ab376afc51ffbd2022/08/01 05:50:33 GRPC CAS HEAD 1c5a4bdcd4182a020257f7afd9e0ca489a1903b7fbea72770bc765177d05afa4 OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GET 200 10.88.0.1 /ac/d3ff58cd0b019b4cc13bab29d292d7751904ca55af0a7a287eaee8eea40886b92022/08/01 05:50:33 GET 200 10.88.0.1 /cas/1c5a4bdcd4182a020257f7afd9e0ca489a1903b7fbea72770bc765177d05afa42022/08/01 05:50:33 GRPC CAS HEAD 3d6be95289cdfc1f5d7e72139ba15f1e61961bf8a754d94bc428213b916e84a4 OK2022/08/01 05:50:33 GRPC CAS HEAD ecd3c8e667cb081f2aef650b61d3ef1876f5e708e78d662fb373e75e4d9151c2 OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GET 200 10.88.0.1 /ac/f6332f30f716c0c2af97cc4cc4d3ee60aa81a40eaf5d7fe6ccbb272d490d78192022/08/01 05:50:33 GET 200 10.88.0.1 /cas/ecd3c8e667cb081f2aef650b61d3ef1876f5e708e78d662fb373e75e4d9151c22022/08/01 05:50:33 GET 200 10.88.0.1 /cas/3d6be95289cdfc1f5d7e72139ba15f1e61961bf8a754d94bc428213b916e84a42022/08/01 05:50:33 GRPC CAS HEAD baa521657fa89d7f1296cb101daaa4d50fd033b78f135661549cb407bfdc0f4a OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GRPC CAS HEAD e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 OK2022/08/01 05:50:33 GET 200 10.88.0.1 /ac/0f0e6da4d2d29061111a54de7c565611faacafa73e117daada0512ea3032370f2022/08/01 05:50:33 GET 200 10.88.0.1 /cas/baa521657fa89d7f1296cb101daaa4d50fd033b78f135661549cb407bfdc0f4a检查remote server的缓存（多了下面的缓存文件）：
代码语言：javascript复制 ⚡ root@backendcloud ~/bazel-remote ls dummy-remote-cache/*
dummy-remote-cache/ac.v2:
00 04 08 0c 10 14 18 1c 20 24 28 2c 30 34 38 3c 40 44 48 4c 50 54 58 5c 60 64 68 6c 70 74 78 7c 80 84 88 8c 90 94 98 9c a0 a4 a8 ac b0 b4 b8 bc c0 c4 c8 cc d0 d4 d8 dc e0 e4 e8 ec f0 f4 f8 fc01 05 09 0d 11 15 19 1d 21 25 29 2d 31 35 39 3d 41 45 49 4d 51 55 59 5d 61 65 69 6d 71 75 79 7d 81 85 89 8d 91 95 99 9d a1 a5 a9 ad b1 b5 b9 bd c1 c5 c9 cd d1 d5 d9 dd e1 e5 e9 ed f1 f5 f9 fd
02 06 0a 0e 12 16 1a 1e 22 26 2a 2e 32 36 3a 3e 42 46 4a 4e 52 56 5a 5e 62 66 6a 6e 72 76 7a 7e 82 86 8a 8e 92 96 9a 9e a2 a6 aa ae b2 b6 ba be c2 c6 ca ce d2 d6 da de e2 e6 ea ee f2 f6 fa fe
03 07 0b 0f 13 17 1b 1f 23 27 2b 2f 33 37 3b 3f 43 47 4b 4f 53 57 5b 5f 63 67 6b 6f 73 77 7b 7f 83 87 8b 8f 93 97 9b 9f a3 a7 ab af b3 b7 bb bf c3 c7 cb cf d3 d7 db df e3 e7 eb ef f3 f7 fb ff
dummy-remote-cache/cas.v2:
00 04 08 0c 10 14 18 1c 20 24 28 2c 30 34 38 3c 40 44 48 4c 50 54 58 5c 60 64 68 6c 70 74 78 7c 80 84 88 8c 90 94 98 9c a0 a4 a8 ac b0 b4 b8 bc c0 c4 c8 cc d0 d4 d8 dc e0 e4 e8 ec f0 f4 f8 fc01 05 09 0d 11 15 19 1d 21 25 29 2d 31 35 39 3d 41 45 49 4d 51 55 59 5d 61 65 69 6d 71 75 79 7d 81 85 89 8d 91 95 99 9d a1 a5 a9 ad b1 b5 b9 bd c1 c5 c9 cd d1 d5 d9 dd e1 e5 e9 ed f1 f5 f9 fd
02 06 0a 0e 12 16 1a 1e 22 26 2a 2e 32 36 3a 3e 42 46 4a 4e 52 56 5a 5e 62 66 6a 6e 72 76 7a 7e 82 86 8a 8e 92 96 9a 9e a2 a6 aa ae b2 b6 ba be c2 c6 ca ce d2 d6 da de e2 e6 ea ee f2 f6 fa fe
03 07 0b 0f 13 17 1b 1f 23 27 2b 2f 33 37 3b 3f 43 47 4b 4f 53 57 5b 5f 63 67 6b 6f 73 77 7b 7f 83 87 8b 8f 93 97 9b 9f a3 a7 ab af b3 b7 bb bf c3 c7 cb cf d3 d7 db df e3 e7 eb ef f3 f7 fb ff
dummy-remote-cache/raw.v2:
00 04 08 0c 10 14 18 1c 20 24 28 2c 30 34 38 3c 40 44 48 4c 50 54 58 5c 60 64 68 6c 70 74 78 7c 80 84 88 8c 90 94 98 9c a0 a4 a8 ac b0 b4 b8 bc c0 c4 c8 cc d0 d4 d8 dc e0 e4 e8 ec f0 f4 f8 fc01 05 09 0d 11 15 19 1d 21 25 29 2d 31 35 39 3d 41 45 49 4d 51 55 59 5d 61 65 69 6d 71 75 79 7d 81 85 89 8d 91 95 99 9d a1 a5 a9 ad b1 b5 b9 bd c1 c5 c9 cd d1 d5 d9 dd e1 e5 e9 ed f1 f5 f9 fd
02 06 0a 0e 12 16 1a 1e 22 26 2a 2e 32 36 3a 3e 42 46 4a 4e 52 56 5a 5e 62 66 6a 6e 72 76 7a 7e 82 86 8a 8e 92 96 9a 9e a2 a6 aa ae b2 b6 ba be c2 c6 ca ce d2 d6 da de e2 e6 ea ee f2 f6 fa fe
03 07 0b 0f 13 17 1b 1f 23 27 2b 2f 33 37 3b 3f 43 47 4b 4f 53 57 5b 5f 63 67 6b 6f 73 77 7b 7f 83 87 8b 8f 93 97 9b 9f a3 a7 ab af b3 b7 bb bf c3 c7 cb cf d3 d7 db df e3 e7 eb ef f3 f7 fb ff
