Building an Docker Image: Unterschied zwischen den Versionen
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(Die Seite wurde neu angelegt: „=Workdir= *cd /root/apache =Dockerfile= *cat Dockerfile <pre> #Baseimage ubuntu 18:04 FROM ubuntu:18.04 #we are the maintainer MAINTAINER technik@xinux.de #on…“) |
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CMD ["bash", "/start.sh"] | CMD ["bash", "/start.sh"] | ||
</pre> | </pre> | ||
| + | =our start script= | ||
| + | when we initiate the container and mount the volumes manually, this directories cover the original ones in the container. | ||
| + | |||
| + | so they are empty. in this start script, we copy the file structure that we need to start our demon to the right directories. | ||
| + | *cat start.sh | ||
| + | <pre> | ||
| + | #!/bin/bash | ||
| + | if ! test -f /var/www/html/index.html | ||
| + | then | ||
| + | cp -ar /tmp/html/* /var/www/html/ | ||
| + | fi | ||
| + | if ! test -f /etc/apache2/apache2.conf | ||
| + | then | ||
| + | cp -ar /tmp/apache2/* /etc/apache2/ | ||
| + | fi | ||
| + | /usr/sbin/apachectl -D FOREGROUND | ||
| + | </pre> | ||
| + | =building the image= | ||
| + | *docker build -t im-apache . | ||
Aktuelle Version vom 8. Oktober 2019, 13:11 Uhr
Workdir
- cd /root/apache
Dockerfile
- cat Dockerfile
#Baseimage ubuntu 18:04 FROM ubuntu:18.04 #we are the maintainer MAINTAINER technik@xinux.de #only run at built RUN apt-get update && apt-get install -y apache2 && apt-get clean RUN cp -ar /etc/apache2 /tmp RUN cp -ar /var/www/html /tmp COPY start.sh / #exposed ports EXPOSE 80 EXPOSE 443 #command that execute in the container CMD ["bash", "/start.sh"]
our start script
when we initiate the container and mount the volumes manually, this directories cover the original ones in the container.
so they are empty. in this start script, we copy the file structure that we need to start our demon to the right directories.
- cat start.sh
#!/bin/bash if ! test -f /var/www/html/index.html then cp -ar /tmp/html/* /var/www/html/ fi if ! test -f /etc/apache2/apache2.conf then cp -ar /tmp/apache2/* /etc/apache2/ fi /usr/sbin/apachectl -D FOREGROUND
building the image
- docker build -t im-apache .