I'm trying to create a simple static web using nginx, and want to have everything created by Dockerfile, the problem is whenever I tried to create an index.html file, it comes out with error, I even tried to test it and its working with "index.htm" but not with the correct format.
FROM centos:7
#update and install nginx section
RUN yum update -y
RUN yum install -y epel-release
RUN yum install -y nginx
#create path and add index.html
WORKDIR /usr/share/nginx/html
#this one working with no issue
RUN touch index.htm
#this one will get failed
RUN touch index.html
EXPOSE 80/tcp
CMD ["nginx", "-g", "daemon off;"]
and this is the error output:
majid@DESKTOP-39CBKO0:~/nginx_simple_web$ docker build -t simple-web:v1 .
[+] Building 3.8s (11/11) FINISHED
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 381B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for docker.io/library/centos:7 3.4s
=> [auth] library/centos:pull token for registry-1.docker.io 0.0s
=> [1/7] FROM docker.io/library/centos:7@sha256:9d4bcbbb213dfd745b58be38b13b996ebb5ac315fe75711bd618426a630 0.0s
=> CACHED [2/7] RUN yum update -y 0.0s
=> CACHED [3/7] RUN yum install -y epel-release 0.0s
=> CACHED [4/7] RUN yum install -y nginx 0.0s
=> CACHED [5/7] WORKDIR /usr/share/nginx/html 0.0s
=> CACHED [6/7] RUN touch index.htm 0.0s
=> ERROR [7/7] RUN touch index.html 0.4s
------
> [7/7] RUN touch index.html:
#11 0.357 touch: cannot touch 'index.html': No such file or directory
------
executor failed running [/bin/sh -c touch index.html]: exit code: 1
majid@DESKTOP-39CBKO0:~/nginx_simple_web$
you should create a file and you can use
COPY index.html index.html
command into Dockerfile to copy a file into image when build
or use
echo " " > index.html command to create a file
You can create a new file using echo:
RUN echo " " > index.htm
The file already exists and is owned by root:
RUN ls -al index.html
---> Running in 27f9d0ae6240
lrwxrwxrwx 1 root root 25 Dec 23 12:08 index.html
-> ../../doc/HTML/index.html
remove it and re-create it:
FROM centos:7
#update and install nginx section
RUN yum update -y
RUN yum install -y epel-release
RUN yum install -y nginx
RUN yum install -y vim
#create path and add index.html
WORKDIR /usr/share/nginx/html
RUN rm index.html
RUN touch index.html
EXPOSE 80/tcp
CMD ["nginx", "-g", "daemon off;"]
Do note that you should, in general, combine multiple RUN commands together.
In your Dockerfile you can use RUN {command} like in the commandline.
RUN mkdir -p /home/foo/
RUN echo "Hello World" > /home/foo/index.html