Docker compose kasutamine
Allikas: Imre kasutab arvutit
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Sissejuhatus
TODO
Tööpõhimõte
TODO
Käsundamine
Isikliku võrgu jms ressurssidega konteineri tekitamine
# cat docker-compose-nginx.yml
services:
svc_nginx:
image: nginx:latest
environment:
- TZ=Europe/Tallinn
ports:
- "8011:80"
container_name: cn_nginx
volumes:
- /srv/nginx/volume/etc/nginx/nginx.conf:/etc/nginx/nginx.conf:ro
networks:
- nw_nginx
networks:
nw_nginx:
name: nw_nginx
driver: bridge
kus
- tundub, et uuemal ajal ei ole asjakohane compose failis kasutada rida 'version: xxx'
Kasutamiseks sobib öelda
$ docker compose -f docker-compose-nginx.yml up [+] Running 2/2 ✔ Network nw_nginx Created 0.1s ✔ Container cn_nginx Created 0.1s Attaching to cn_nginx dc_nginx | /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration dc_nginx | /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ dc_nginx | /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh ...
Ning tulemusena on moodustunud sellised ressursid
$ docker network ls NETWORK ID NAME DRIVER SCOPE 3fe6d3988e37 bridge bridge local 617b4a0d5de5 host host local d4743d12eb6a none null local 67a9effbfa9b nw_nginx bridge local
ning
# docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 78a420d0f791 nginx:latest "/docker-entrypoint.…" 43 minutes ago Up 1 second 0.0.0.0:8011->80/tcp cn_nginx
Konteineri ja võrgu kustutamiseks sobib öelda
$ docker compose -f docker-compose-nginx.yml down [+] Running 2/2 ✔ Container cn_nginx Removed 0.3s ✔ Network nw_nginx Removed 0.1s
Logimine
Konteineri sees
root@dh-post:~# docker exec -ti 53 bash root@5346ca828019:/# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.1 14884 7608 ? Ss Jul05 0:00 nginx: master process nginx -g daemon off; nginx 29 0.0 0.0 15340 3516 ? S Jul05 0:00 nginx: worker process nginx 30 0.0 0.0 15340 3516 ? S Jul05 0:00 nginx: worker process nginx 31 0.0 0.0 15340 3516 ? S Jul05 0:00 nginx: worker process nginx 32 0.0 0.0 15340 3516 ? S Jul05 0:00 nginx: worker process root 253 0.0 0.0 4320 3844 pts/0 Ss+ Jul05 0:00 bash root 280 0.9 0.0 4320 3692 pts/2 Ss 09:59 0:00 bash root 286 0.0 0.0 6388 3760 pts/2 R+ 09:59 0:00 ps aux root@5346ca828019:/# lsof -p 1 -P -n COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME nginx 1 root cwd DIR 0,68 38 3528403 / nginx 1 root rtd DIR 0,68 38 3528403 / nginx 1 root txt REG 0,68 1683584 3126357 /usr/sbin/nginx nginx 1 root mem REG 0,41 3126357 /usr/sbin/nginx (path dev=0,68) nginx 1 root mem REG 0,41 3123196 /usr/lib/x86_64-linux-gnu/libzstd.so.1.5.7 (path dev=0,68) nginx 1 root mem REG 0,41 3123113 /usr/lib/x86_64-linux-gnu/libc.so.6 (path dev=0,68) nginx 1 root mem REG 0,41 3123194 /usr/lib/x86_64-linux-gnu/libz.so.1.3.1 (path dev=0,68) nginx 1 root mem REG 0,41 3123121 /usr/lib/x86_64-linux-gnu/libcrypto.so.3 (path dev=0,68) nginx 1 root mem REG 0,41 3123176 /usr/lib/x86_64-linux-gnu/libssl.so.3 (path dev=0,68) nginx 1 root mem REG 0,41 3123161 /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0.14.0 (path dev=0,68) nginx 1 root mem REG 0,41 3123120 /usr/lib/x86_64-linux-gnu/libcrypt.so.1.1.0 (path dev=0,68) nginx 1 root DEL REG 0,1 1025 /dev/zero nginx 1 root mem REG 0,41 3123093 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 (path dev=0,68) nginx 1 root 0u CHR 1,3 0t0 5 /dev/null nginx 1 root 1w FIFO 0,13 0t0 10873651 pipe nginx 1 root 2w FIFO 0,13 0t0 10873652 pipe nginx 1 root 3u unix 0x00000000a3184a13 0t0 10875931 type=STREAM (CONNECTED) nginx 1 root 4w FIFO 0,13 0t0 10873652 pipe nginx 1 root 5w FIFO 0,13 0t0 10873651 pipe nginx 1 root 6u IPv4 10875929 0t0 TCP *:80 (LISTEN) nginx 1 root 7u IPv6 10875930 0t0 TCP *:80 (LISTEN) nginx 1 root 8u unix 0x00000000dc7fdbea 0t0 10875932 type=STREAM (CONNECTED) nginx 1 root 9u unix 0x0000000036947168 0t0 10875933 type=STREAM (CONNECTED) nginx 1 root 10u unix 0x00000000d3bf8d5c 0t0 10875934 type=STREAM (CONNECTED) nginx 1 root 11u unix 0x0000000050db47c2 0t0 10875935 type=STREAM (CONNECTED) nginx 1 root 12u unix 0x000000008ed04f9a 0t0 10875936 type=STREAM (CONNECTED) nginx 1 root 13u unix 0x000000002c91e410 0t0 10875937 type=STREAM (CONNECTED) nginx 1 root 14u unix 0x00000000fc81b5b0 0t0 10875938 type=STREAM (CONNECTED)
kus
- TODO
dockerhost peal
root@dh-post:~# lsof -n -P 2>&1 | grep 10873651 container 3235355 root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235356 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235357 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235358 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235359 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235360 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235361 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235362 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235363 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3235364 container root 3r FIFO 0,13 0t0 10873651 pipe container 3235355 3236396 container root 3r FIFO 0,13 0t0 10873651 pipe nginx 3235379 root 1w FIFO 0,13 0t0 10873651 pipe nginx 3235379 root 5w FIFO 0,13 0t0 10873651 pipe nginx 3235458 systemd-network 1w FIFO 0,13 0t0 10873651 pipe nginx 3235458 systemd-network 5w FIFO 0,13 0t0 10873651 pipe nginx 3235459 systemd-network 1w FIFO 0,13 0t0 10873651 pipe nginx 3235459 systemd-network 5w FIFO 0,13 0t0 10873651 pipe nginx 3235460 systemd-network 1w FIFO 0,13 0t0 10873651 pipe nginx 3235460 systemd-network 5w FIFO 0,13 0t0 10873651 pipe nginx 3235461 systemd-network 1w FIFO 0,13 0t0 10873651 pipe nginx 3235461 systemd-network 5w FIFO 0,13 0t0 10873651 pipe root@dh-post:~# ps aux | grep -A 1 3235355 root 3235355 0.0 0.2 1235608 12780 ? Sl Jul05 0:03 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 5346ca828019f72091abce7126602450428a069de940c004500657906a8354b5 -address /run/containerd/containerd.sock root 3235379 0.0 0.1 14884 7608 ? Ss Jul05 0:00 nginx: master process nginx -g daemon off;
kus
- node '10873651' väärtus on globaalne, st konteineri ja dockerhost vaates jääb see samaks, see on seotud docker sees stdout peale logi kirjutava protsessi väljundis oleva pipe'iga
