10 个冷门但又非常实用的 Docker 使用技巧
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1. docker top
docker top 3b307a09d20d
UID PID PPID C STIME TTY TIME CMD
root 805 787 0 Jul13 ? 00:00:00 nginx: master process nginx -g daemon off;
systemd+ 941 805 0 Jul13 ? 00:03:18 nginx: worker process
2. docker load && docker save
~ docker save registry:2.7.1 >registry-2.7.1.tar
#同时 docker load 可以把镜像从 tar 文件导入到 docker 中
~ docker load < registry-2.7.1.tar
3. docker search
~ docker search nginx
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
nginx Official build of Nginx. 13519 [OK]
jwilder/nginx-proxy Automated Nginx reverse proxy for docker con… 1846 [OK]
richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable of… 780 [OK]
linuxserver/nginx An Nginx container, brought to you by LinuxS… 123
bitnami/nginx Bitnami nginx Docker Image 87 [OK]
tiangolo/nginx-rtmp Docker image with Nginx using the nginx-rtmp… 85 [OK]
jc21/nginx-proxy-manager Docker container for managing Nginx proxy ho… 73
alfg/nginx-rtmp NGINX, nginx-rtmp-module and FFmpeg from sou… 71 [OK]
nginxdemos/hello NGINX webserver that serves a simple page co… 57 [OK]
jlesage/nginx-proxy-manager Docker container for Nginx Proxy Manager 53 [OK]
nginx/nginx-ingress NGINX Ingress Controller for Kubernetes 37
......
4. docker events
~ docker events
2020-07-28T21:28:46.000403018+08:00 image load sha256:432bf69f0427b52cad10897342eaf23521b7d973566354118e9a59c4d31b5fae (name=sha256:432bf69f0427b52cad10897342eaf23521b7d973566354118e9a59c4d31b5fae)
5. docker update
~ docker update nginx --cpus 2
6. docker history
~ docker history traefik:v2.1.6
IMAGE CREATED CREATED BY SIZE COMMENT
5212a87ddaba 5 months ago /bin/sh -c #(nop) LABEL org.opencontainers.… 0B5 months ago /bin/sh -c #(nop) CMD ["traefik"] 0B 5 months ago /bin/sh -c #(nop) ENTRYPOINT ["/entrypoint.… 0B 5 months ago /bin/sh -c #(nop) EXPOSE 80 0B 5 months ago /bin/sh -c #(nop) COPY file:59a219a1fb7a9dc8… 419B 5 months ago /bin/sh -c set -ex; apkArch="$(apk --print-… 52.9MB 5 months ago /bin/sh -c apk --no-cache add ca-certificate… 1.85MB CMD ["/bin/sh"] 0B6 months ago /bin/sh -c #(nop) 6 months ago /bin/sh -c #(nop) ADD file:a1906f14a4e217a49… 4.81MB
7. docker wait
~ docker wait 7f7f0522a7d0
0
8. docker pause && docker unpause
~ docker pause 7f7f0522a7d0
9. docker diff
~ docker diff 38c59255bf6e
C /etc
A /etc/localtime
C /var
C /var/lib
A /var/lib/registry
10. docker stats
~ docker stats
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
1c5ade04e7f9 redis 0.08% 17.53MiB / 47.01GiB 0.04% 10.9GB / 37GB 0B / 0B 4
afe6d4ebe409 kafka-exporter 0.09% 16.91MiB / 47.01GiB 0.04% 1.97GB / 1.53GB 752MB / 0B 23
f0c7c01a9c34 kafka-docker_zookeeper 0.01% 308.8MiB / 47.01GiB 0.64% 20.2MB / 12.2MB 971MB / 3.29MB 28
da8c5008955f kafka-docker_kafka-manager 0.08% 393.2MiB / 47.01GiB 0.82% 1.56MB / 2.61MB 1.14GB / 0B 60
c8d51c583c49 kafka-docker_kafka 1.63% 1.256GiB / 47.01GiB 2.67% 30.4GB / 48.9GB 22.3GB / 5.77GB 85
......
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