Answers: <p><code>The docker build command builds Docker images from a Dockerfile and a “context”. A build’s context is the set of files located in the specified PATH or URL. The build process can refer to any of the files in the context. For example, your build can use a COPY instruction to reference a file in the context.</code></p>
  <p>From <a href="https://docs.docker.com/engine/reference/commandline/build/" rel="nofollow noreferrer">docker build</a> documentation.</p>
  <p>As you run the docker build with the <code>.</code> path for the context, it will try to find the folder <code>home/nicholas/html</code> from the context <code>root@mordor:/home/nicholas/docker/nginx</code></p>
  <p>The <a href="https://docs.docker.com/engine/reference/builder/#copy" rel="nofollow noreferrer">COPY command</a> documentation shows some examples</p>
  
Answers: CC BY-SA 4.0
Answers: 2020-11-14T07:34:40.177Z
Answers: yet the copy command wasn't, and isn't, acting as expected.
Answers: Nicholas Saunders
Answers: CC BY-SA 4.0
Answers: 2020-11-14T08:45:09.683Z
Answers: If you push minimal files into a repository, I can drive deep a little bit ;-)
Answers: Benjamin Longearet
Answers: CC BY-SA 4.0
Answers: 2020-11-14T04:03:29.280Z
Answers: 2020-11-14T04:03:29.280Z
Answers: Benjamin Longearet
Answers: <p>This at least builds and runs:</p>
  <pre><code>root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# ls -al
  total 16
  drwxrwxr-x 2 nicholas nicholas 4096 Nov 13 17:18 .
  drwxrwxr-x 3 nicholas nicholas 4096 Nov 13 16:12 ..
  -rw-rw-r-- 1 nicholas nicholas   49 Nov 13 17:18 dockerfile
  -rw-rw-r-- 1 nicholas nicholas   56 Nov 13 17:18 index.html
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# cat dockerfile 
  FROM nginx
  COPY index.html /usr/share/nginx/html
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# cat index.html 
  
  
  
  hello world
  
  how do I put this file in a diff dir?
  
  
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# docker build -t some-content-nginx .
  Sending build context to Docker daemon  3.072kB
  Step 1/2 : FROM nginx
   ---&gt; c39a868aad02
  Step 2/2 : COPY index.html /usr/share/nginx/html
   ---&gt; Using cache
   ---&gt; 07a94375fb55
  Successfully built 07a94375fb55
  Successfully tagged some-content-nginx:latest
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# docker run --name some-nginx -d -p 8080:80 some-content-nginx
  2c912aa5ce5c8b864a6fe79a18ee8e833874f85a75fed1c7020163ca7b90bedb
  root@mordor:/home/nicholas/docker/nginx# 
  </code></pre>
  <p>although I can't seem to get anything from navigating to <code>localhost</code> so I'll have to look closer at the <code>container</code> which is built.</p>
  
Answers: CC BY-SA 4.0
Answers: 2020-11-14T01:24:56.197Z
Answers: 2020-11-14T01:24:56.197Z
Answers: Nicholas Saunders
Body: <p><a href="https://hub.docker.com/_/nginx" rel="nofollow noreferrer">How do I copy</a> an <code>index.html</code> file into <code>nginx</code>?</p>
  <pre><code>root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# ll
  total 12
  drwxrwxr-x 2 nicholas nicholas 4096 Nov 13 16:18 ./
  drwxrwxr-x 3 nicholas nicholas 4096 Nov 13 16:12 ../
  -rw-rw-r-- 1 nicholas nicholas   60 Nov 13 16:18 dockerfile
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# cat dockerfile 
  FROM nginx
  COPY /home/nicholas/html /usr/share/nginx/html
  
  
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# docker build -t some-content-nginx .
  Sending build context to Docker daemon  2.048kB
  Step 1/2 : FROM nginx
   ---&gt; c39a868aad02
  Step 2/2 : COPY /home/nicholas/html /usr/share/nginx/html
  COPY failed: stat /var/snap/docker/common/var-lib-docker/tmp/docker-builder726461098/home/nicholas/html: no such file or directory
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# ls /home/nicholas/html/
  index.html
  root@mordor:/home/nicholas/docker/nginx# 
  root@mordor:/home/nicholas/docker/nginx# cat /home/nicholas/html/index.html 
  
  
  
  index
  hello world
  
  
  
  nicholas@mordor:~/html$ 
  </code></pre>
  <p>I'm unclear on the source and destination, which might be complicated by <code>docker</code> having been installed from <code>snap</code>.</p>
  <hr />
  <p><a href="https://devops.stackexchange.com/q/10597/23443">Looks</a> like <code>ansible</code> has slightly clearer, at least for me, syntax:</p>
  <pre><code>  tasks:
    - name: &quot;Copying files&quot;
      copy:
        src: files/{{ item }}
        dest: /my/folder/
      with_items:
        - file.txt
  </code></pre>
  <p>or perhaps I'm doing something incorrectly.</p>
  
Tags: <docker><docker-compose><dockerfile><nginx><ubuntu>
Title: How to copy HTML files to include into nginx?
UserDisplayName: Nicholas Saunders
ThreadText: # How to copy HTML files to include into nginx?
  
  (Asked by: username_0 on 2020-11-14)
  
  [How do I copy](https://hub.docker.com/_/nginx) an `index.html` file into `nginx`?
  
  ```
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# ll
  total 12
  drwxrwxr-x 2 username_0 username_0 4096 Nov 13 16:18 ./
  drwxrwxr-x 3 username_0 username_0 4096 Nov 13 16:12 ../
  -rw-rw-r-- 1 username_0 username_0   60 Nov 13 16:18 dockerfile
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# cat dockerfile 
  FROM nginx
  COPY /home/username_0/html /usr/share/nginx/html
  
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# docker build -t some-content-nginx .
  Sending build context to Docker daemon  2.048kB
  Step 1/2 : FROM nginx
   ---> c39a868aad02
  Step 2/2 : COPY /home/username_0/html /usr/share/nginx/html
  COPY failed: stat /var/snap/docker/common/var-lib-docker/tmp/docker-builder726461098/home/username_0/html: no such file or directory
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# ls /home/username_0/html/
  index.html
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# cat /home/username_0/html/index.html 
  
  index
  hello world
  
  username_0@mordor:~/html$ 
  
  ```
  
  I'm unclear on the source and destination, which might be complicated by `docker` having been installed from `snap`.
  
  ---
  
  [Looks](https://devops.stackexchange.com/q/10597/23443) like `ansible` has slightly clearer, at least for me, syntax:
  
  ```
    tasks:
    - name: "Copying files"
      copy:
        src: files/{{ item }}
        dest: /my/folder/
      with_items:
        - file.txt
  
  ```
  
  or perhaps I'm doing something incorrectly.
  
  **Tags:** docker, docker-compose, dockerfile, nginx, ubuntu
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2020-11-14. Score: 1 | Accepted answer
  
  `The docker build command builds Docker images from a Dockerfile and a “context”. A build’s context is the set of files located in the specified PATH or URL. The build process can refer to any of the files in the context. For example, your build can use a COPY instruction to reference a file in the context.`
  
  From [docker build](https://docs.docker.com/engine/reference/commandline/build/) documentation.
  
  As you run the docker build with the `.` path for the context, it will try to find the folder `home/username_0/html` from the context `root@mordor:/home/username_0/docker/nginx`
  
  The [COPY command](https://docs.docker.com/engine/reference/builder/#copy) documentation shows some examples
  
  > **Comments:**
  > **username_0**: yet the copy command wasn't, and isn't, acting as expected.  
  > **username_1**: If you push minimal files into a repository, I can drive deep a little bit ;-)  
  
  ---
  
  ### Answer by username_0 on 2020-11-14. Score: 0
  
  This at least builds and runs:
  
  ```
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# ls -al
  total 16
  drwxrwxr-x 2 username_0 username_0 4096 Nov 13 17:18 .
  drwxrwxr-x 3 username_0 username_0 4096 Nov 13 16:12 ..
  -rw-rw-r-- 1 username_0 username_0   49 Nov 13 17:18 dockerfile
  -rw-rw-r-- 1 username_0 username_0   56 Nov 13 17:18 index.html
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# cat dockerfile 
  FROM nginx
  COPY index.html /usr/share/nginx/html
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# cat index.html 
  
  hello world
  
  how do I put this file in a diff dir?
  
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# docker build -t some-content-nginx .
  Sending build context to Docker daemon  3.072kB
  Step 1/2 : FROM nginx
   ---> c39a868aad02
  Step 2/2 : COPY index.html /usr/share/nginx/html
   ---> Using cache
   ---> 07a94375fb55
  Successfully built 07a94375fb55
  Successfully tagged some-content-nginx:latest
  root@mordor:/home/username_0/docker/nginx# 
  root@mordor:/home/username_0/docker/nginx# docker run --name some-nginx -d -p 8080:80 some-content-nginx
  2c912aa5ce5c8b864a6fe79a18ee8e833874f85a75fed1c7020163ca7b90bedb
  root@mordor:/home/username_0/docker/nginx# 
  
  ```
  
  although I can't seem to get anything from navigating to `localhost` so I'll have to look closer at the `container` which is built.
  
  
  ---
  
  