Implement DevOps culture and repository management solutions
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(High
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Chapter 18
Chapter 19
Chapter 20
Chapter 21
Chapter 22
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http:/ / bit. ly/ 2KirIoO
https:/ / static. packt- cdn. com/ downloads/ 9781789531282_ ColorImages. pdf
CodeInText /usr/local/www
server { listen 8080; server_name localhost;
server { server_name localhost;
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Chapter 1 Chapter 2 Chapter 3 Chapter 4
https:/ / github. com/ PacktPublishing/ Mastering- GitLab- 12/ tree/ master/ Chapter01 Readme.md
https:/ / about. gitlab. com/ . https:/ / news. ycombinator. com/ item id= 4428278
–
• CI/CD • Project Issue Board • Mattermost integrations • Time tracking • GitLab pages • Maven and NPM repository functionality • Protected environments • Burndown charts • Multiple LDAP servers and Active Directory support
• All security scanning tools • Epics • Free guest users • Web terminal for the web IDE
awk sed
error.log access.log /var/log/nginx/ /var/log/gitlab/nginx
2019/09/08 20:45:14 [crit] 2387#2387: *95 connect() to unix:/var/www/gitlab-app/tmp/sockets/unicorn.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /-/metrics HTTP/1.1", upstream: "http://unix:/var/www/gitlab-app/tmp/sockets/unicorn.sock:/-/metrics", host: "127.0.0.1:8080"
https:/ / rack. github. io
Timeouts in Unicorn logs unicorn_stderr.log
https:/ / github. com/ jahio/ unicorn- status
unicorn_status.rb ../.socket 10
Unicorn processes disappear
dmesg | egrep -i 'killed process'
Other kinds of errors or 100% CPU load strace
sudo gdb -p (PID) call (void) rb_backtrace() /var/log/gitlab/unicorn/unicorn_stderr.log
detach q
https:/ / github. com/ mperham/ sidekiq/ wiki
Sidekiq processes disappear
dmesg | egrep -i 'killed process'
A Sidekiq process is seemingly doing nothing
/var/log/gitlab/sidekiq/current
{"severity":"INFO","time":"2019-06 23T19:00:14.493Z","class":"RemoteMirrorNotificationWorker","retry":3,"queue ":"remote_mirror_notification","jid":"69eb806bfb66b82315bcb249","created_at ":"2019-06-23T19:00:14.461Z","correlation_id":"toX0HnYW0s9","enqueued_at":" 2019-06-23T19:00:14.461Z","pid":471,"message":"RemoteMirrorNotificationWork er JID-69eb806bfb66b82315bcb249: done: 0.03 sec","job_status":"done","duration":0.03,"completed_at":"2019-06-23T19:00:1 4.493Z"}
Other kind of errors or 100% CPU load
sudo gdb -p (PID) call (void) rb_backtrace() /var/log/gitlab/sidekiq/current
2018-09-21_19:55:03.48430 from /opt/gitlab/embedded/lib/ruby/gems/2.4.0/gems/redis-3.3.5/lib/redis /connection/ruby.rb:83:in `_read_from_socket' 2018-09-21_19:55:03.48431 from /opt/gitlab/embedded/lib/ruby/gems/2.4.0/gems/redis-3.3.5/lib/redis /connection/ruby.rb:87:in `rescue in _read_from_socket' 2018-09-21_19:55:03.48432 from /opt/gitlab/embedded/lib/ruby/gems/2.4.0/gems/redis-3.3.5/lib/redis /connection/ruby.rb:87:in `select'
_read_from _socket detach
strace -p
git-http
https:/ / gitlab. com/ gitlab- org/ gitlab- shell
Chapter 2
/var/log/gitlab/gitlab-shell/gitlab-shell.log
/home/git/gitlab-shell/gitlab-shell.log
git push git pull
failed
production.log
https:/ / github. com/ PacktPublishing/ Mastering- GitLab- 12/ tree/ master/ Chapter01/ InstallingRedis. md
redis-cli
set get
set get
rpush lpush
sadd smembers
gitlab-workhorse gitlab-shell
https:/ / gitlab. com/ gitlab- org/ gitaly.