README

Under 105-website, let us look at how to create a Dockerfile which set up a simple webpage for us.

First, we will build a Docker Image shown below:

<pre> master==> git clone https://github.com/ajeetraina/docker101/tree/master/105-website master==> cd 105-website master==>docker build -t ajeetraina/nginx-demo-105 . Sending build context to Docker daemon 30.21 kB Step 1/4 : FROM nginx latest: Pulling from library/nginx 693502eb7dfb: Already exists 6decb850d2bc: Pull complete c3e19f087ed6: Pull complete Digest: sha256:52a189e49c0c797cfc5cbfe578c68c225d160fb13a42954144b29af3fe4fe335 Status: Downloaded newer image for nginx:latest ---> 6b914bbcb89e Step 2/4 : COPY wrapper.sh / ---> 70297381661d Removing intermediate container 4e5d9e435617 Step 3/4 : COPY html /usr/share/nginx/html ---> 25adcbc67425 Removing intermediate container 8eb8ee64131f Step 4/4 : CMD ./wrapper.sh Step 4/4 : CMD ./wrapper.sh ---> Running in f4721b3f6421 ---> c6c187264fad Removing intermediate container f4721b3f6421 Successfully built c6c187264fad </pre>

Let us verify if Docker Image is built or NOT:

<pre> master==>docker images REPOSITORY TAG IMAGE ID CREATED SIZE ajeetraina/nginx_105_demo latest c6c187264fad 7 seconds ago 182 MB </pre>

Running the Container:

<pre> master==>docker run -d -P --name myweb ajeetraina/nginx-demo-105 d30904aa94a4615045a2962c3fd15f02bcd82c1b7371f927f77923d60f014645 </pre>

Verifying if Container is running or not:

<pre> master==>docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d30904aa94a4 ajeetraina/nginx-demo-105 "./wrapper.sh" 3 seconds ago Up 2 seconds 0.0.0.0:32782->80/tcp, 0.0.0.0:3 2781->443/tcp myweb </pre>

Note:

Did you encounter this error while cloning and building the Docker Image:

<pre> docker: Error response from daemon: oci runtime error: container_linux.go:247: starting container process caused "exec: \"./wrapper.sh\": pe rmission denied". </pre>

This is due to permission issue. The wrapper.sh script possibly doesn't have executable permission. Run chmod +x wrapper.sh and re-build the Docker Image.

Displaying Container Ports:

<pre> master==>docker port d3090 80/tcp -> 0.0.0.0:32782 443/tcp -> 0.0.0.0:32781 </pre>

You can open http://localhost:32769 in your browser.

If you want to run Nginx in your desired port, here is the way:

<pre> master==>docker run -d -p 8888:80 ajeetraina/nginx-demo-105 beb4fa77b033fb46e9f772110cfcd65e9656af0212931e674a1f2bd34422d478 master==>docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES beb4fa77b033 ajeetraina/nginx-demo-105 "./wrapper.sh" 7 seconds ago Up 5 seconds 443/tcp, 0.0.0.0:8888->80/tcp gifted_almeida </pre>