dockerfile-映象製作
阿新 • • 發佈：2021-01-11
目錄
1.基於alpine製作nginx映象
1.1 拉取alpine映象
[root@vm1 ~]# docker pull alpine:latest latest: Pulling from library/alpine Digest: sha256:3c7497bf0c7af93428242d6176e8f7905f2201d8fc5861f45be7a346b5f23436 Status: Image is up to date for alpine:latest docker.io/library/alpine:latest
1.2 編寫dockerfile
[root@vm1 ~]# mkdir alpine-nginx [root@vm1 ~]# cd alpine-nginx/ [root@vm1 alpine-nginx]# vim Dockerfile FROM alpine:latest LABEL MAINTAINER="wisan [email protected]" RUN echo -e "http://mirrors.aliyun.com/alpine/v3.9/main\nhttp://mirrors.aliyun.com/alpine/v3.9/community" > /etc/apk/repositories \ && apk add nginx \ && mkdir -p /html/nginx \ && echo "hello world !" > /html/nginx/index.html \ && mv /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak EXPOSE 80 COPY ./nginx.conf /etc/nginx/nginx.conf CMD ["nginx","-g","daemon off;"]
1.3 nginx配置檔案
[root@vm1 alpine-nginx]# vim nginx.conf user nginx; worker_processes auto; error_log /var/log/nginx/error.log; pid /run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; sendfile on; access_log /var/log/nginx/access.log; keepalive_timeout 3000; server { listen 80; server_name localhost; client_max_body_size 32m; location / { root /html/nginx; index index.html; } } } [root@vm1 alpine-nginx]# ls Dockerfile nginx.conf
1.4 build生成映象
[root@vm1 alpine-nginx]# docker build -t xpengzong/nginx:v1 .
Sending build context to Docker daemon 3.584kB
Step 1/6 : FROM alpine:latest
---> 389fef711851
Step 2/6 : LABEL MAINTAINER="wisan [email protected]"
---> Running in ec6e24471846
Removing intermediate container ec6e24471846
---> 2ec5c5f00b8b
Step 3/6 : RUN echo -e "http://mirrors.aliyun.com/alpine/v3.9/main\nhttp://mirrors.aliyun.com/alpine/v3.9/community" > /etc/apk/repositories && apk add nginx && mkdir -p /html/nginx && echo "hello world !" > /html/nginx/index.html && mv /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
---> Running in b54d45f257c1
fetch http://mirrors.aliyun.com/alpine/v3.9/main/x86_64/APKINDEX.tar.gz
fetch http://mirrors.aliyun.com/alpine/v3.9/community/x86_64/APKINDEX.tar.gz
(1/2) Installing pcre (8.42-r2)
(2/2) Installing nginx (1.14.2-r5)
Executing nginx-1.14.2-r5.pre-install
Executing busybox-1.31.1-r19.trigger
OK: 7 MiB in 16 packages
Removing intermediate container b54d45f257c1
---> 664451d60ff1
Step 4/6 : EXPOSE 80
---> Running in e81893e9d503
Removing intermediate container e81893e9d503
---> 571e21d92794
Step 5/6 : COPY ./nginx.conf /etc/nginx/nginx.conf
---> 4b14be0a860d
Step 6/6 : CMD ["nginx","-g","daemon off;"]
---> Running in 417d2859958f
Removing intermediate container 417d2859958f
---> 5b9d6971af83
Successfully built 5b9d6971af83
Successfully tagged xpengzong/nginx:v1
1.5 上傳製作的映象
[root@vm1 alpine-nginx]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
xpengzong/nginx v1 5b9d6971af83 15 seconds ago 8.32MB
alpine latest 389fef711851 2 weeks ago 5.58MB
nginx latest ae2feff98a0c 3 weeks ago 133MB
httpd latest dd85cdbb9987 3 weeks ago 138MB
ubuntu latest f643c72bc252 5 weeks ago 72.9MB
[root@vm1 alpine-nginx]# docker login
Authenticating with existing credentials...
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store
Login Succeeded
[root@vm1 alpine-nginx]# docker push xpengzong/nginx:v1
The push refers to repository [docker.io/xpengzong/nginx]
885516d3a947: Pushed
780e8c2673c1: Pushed
777b2c648970: Mounted from library/alpine
v1: digest: sha256:a2b5c1a84d180628ab4571152159ccd519375f66f8d75a4d2a5e545195168b54 size: 946
1.6 驗證
[root@vm1 alpine-nginx]# docker rmi xpengzong/nginx:v1
Untagged: xpengzong/nginx:v1
Untagged: xpengzong/nginx@sha256:a2b5c1a84d180628ab4571152159ccd519375f66f8d75a4d2a5e545195168b54
Deleted: sha256:5b9d6971af832a178ebbadfbcbacd7027b0b2941b68149e2c5ed55caa53d61f5
Deleted: sha256:4b14be0a860d692c436ef685b7c5f83597bf8c02fba767ba034659bca3875822
Deleted: sha256:a54d6cdc3abb652926e0d83da90c44f87d276cedfb539b0908c9bbaf5d2ef5de
Deleted: sha256:571e21d927949da0eb3b39b5baa701d2e04014e680173ce0400d42b2fa9c1bf8
Deleted: sha256:664451d60ff1bc88a1de642be85d13206e3a491ea06acf2537f20211680e5638
Deleted: sha256:7cf9ab071e7a559234de1795863eec0a2f2ce42bc049f9e78b3ce0138bca770d
Deleted: sha256:2ec5c5f00b8bd7e02fe78abd624506e2b617ffe89e9cef4cefb8555425ae5a54
[root@vm1 alpine-nginx]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
alpine latest 389fef711851 2 weeks ago 5.58MB
nginx latest ae2feff98a0c 3 weeks ago 133MB
httpd latest dd85cdbb9987 3 weeks ago 138MB
ubuntu latest f643c72bc252 5 weeks ago 72.9MB
[root@vm1 alpine-nginx]# docker pull xpengzong/nginx:v1
v1: Pulling from xpengzong/nginx
801bfaa63ef2: Already exists
93b80b1f73f6: Pull complete
14d9c606229f: Pull complete
Digest: sha256:a2b5c1a84d180628ab4571152159ccd519375f66f8d75a4d2a5e545195168b54
Status: Downloaded newer image for xpengzong/nginx:v1
docker.io/xpengzong/nginx:v1
[root@vm1 alpine-nginx]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
xpengzong/nginx v1 5b9d6971af83 12 minutes ago 8.32MB
alpine latest 389fef711851 2 weeks ago 5.58MB
nginx latest ae2feff98a0c 3 weeks ago 133MB
httpd latest dd85cdbb9987 3 weeks ago 138MB
ubuntu latest f643c72bc252 5 weeks ago 72.9MB
##前臺執行
[root@vm1 alpine-nginx]# docker run -it --name nginx1 xpengzong/nginx:v1
##換個終端
[root@vm1 alpine-nginx]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1d3f050a1e10 xpengzong/nginx:v1 "nginx -g 'daemon of…" 25 seconds ago Up 22 seconds 80/tcp nginx1
[root@vm1 alpine-nginx]# docker inspect nginx1
................................................
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "95c863fbcb17c9950ee3856687dad2cfb182bab955ee86022ad1a8b9f83065bc",
"EndpointID": "89887c8cb2da22f840855c93b2800dd68e259bcd7e63827d5cf949b941b1c1c1",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
...................................................
##訪問nignx服務
[root@vm1 alpine-nginx]# curl 172.17.0.2
hello world !
##埠對映
[root@vm1 alpine-nginx]# docker run -it --name nginx2 -p 8080:80 xpengzong/nginx:v1
[root@vm1 alpine-nginx]# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 128 *:8080 *:*
LISTEN 0 128 [::]:22 [::]:*
[root@vm1 alpine-nginx]# curl 127.0.0.1:8080
hello world !