Install Docker
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sudo apt install docker.io |
...
Adding current user to docker group to avoid sudo prefix in all docker commands
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sudo usermod -aG docker $USER |
Example search (for tomcat) images on Docker Hub
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docker search tomcat |
Download image
without starting container. example with wordpress image.
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docker pull wordpress |
See local (downloaded) images
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NAME DESCRIPTION STARS OFFICIAL AUTOMATED
tomcat Apache Tomcat is an open source implementati… 2701 [OK]
tomee Apache TomEE is an all-Apache Java EE certif… 77 [OK]
dordoka/tomcat Ubuntu 14.04, Oracle JDK 8 and Tomcat 8 base… 53 [OK]
bitnami/tomcat Bitnami Tomcat Docker Image 31 [OK]
kubeguide/tomcat-app Tomcat image for Chapter 1 28
consol/tomcat-7.0 Tomcat 7.0.57, 8080, "admin/admin" 17 [OK]
cloudesire/tomcat Tomcat server, 6/7/8 15 [OK]
aallam/tomcat-mysql Debian, Oracle JDK, Tomcat & MySQL 12 [OK]
arm32v7/tomcat Apache Tomcat is an open source implementati… 10
rightctrl/tomcat CentOS , Oracle Java, tomcat application ssl… 6 [OK]
maluuba/tomcat7-java8 Tomcat7 with java8. 4
... |
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REPOSITORY TAG IMAGE ID CREATED SIZE
wordpress php7.4-fpm-alpine 78ac3963ff95 2 weeks ago 201MB
amazonlinux latest cd2d92bc1c0c 2 weeks ago 163MB
php 7.4-fpm-alpine 0e798217e66f 3 weeks ago 81.4MB |
See running images
Run container example
Interactive mode start
of tomcat with mapping port 8080 of container to 8080 on server
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docker run -it -p 8080:8080 tomcat |
Background start
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docker run -d 8080:8080 tomcat |
Delete images
work if no running containers on that image
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docker rmi wordpress |
Create Custom docker image using Dockerfile
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FROM amazonlinux
RUN yum -y update
RUN yum -y install httpd
RUN yum -y install php
COPY ./index.php /var/www/html/index.php
CMD ["/usr/sbin/httpd", "-D", "FOREGROUND"]
EXPOSE 80 |
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<?php phpinfo(); ?> |
Build image
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docker build --tag example/amzn-phpinfo . |
See image info
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docker image history example/amzn-phpinfo |
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IMAGE CREATED CREATED BY SIZE COMMENT
77066f284dea 2 minutes ago /bin/sh -c #(nop) EXPOSE 80 0B
ee2fcebe08bb 2 minutes ago /bin/sh -c #(nop) CMD ["/usr/sbin/httpd" "-… 0B
ac29f44aa839 2 minutes ago /bin/sh -c #(nop) COPY file:7aa92ce52044b7f0… 20B
9352d0227e03 2 minutes ago /bin/sh -c yum -y install php 203MB
47ac5b8a84d6 3 minutes ago /bin/sh -c yum -y install httpd 255MB
0e2161f5a988 3 minutes ago /bin/sh -c yum -y update 193MB
cd2d92bc1c0c 2 weeks ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0B
<missing> 2 weeks ago /bin/sh -c #(nop) ADD file:119ae574c5d5b6e59… 163MB |
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docker image inspect example/amzn-phpinfo |