> For the complete documentation index, see [llms.txt](https://teachersmanual.firstdraft.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teachersmanual.firstdraft.com/projects-checklist/updating-gitpod-docker-image.md).

# Updating Gitpod Docker Image

## Updating Gitpod Docker image

### Pull Image from Docker Hub

```
docker pull <image-name>
```

#### See available Docker Images

```bash
docker images
```

#### See running containers

```bash
docker ps
```

### Run Image Interactively

```bash
docker run -it <image-name>
```

### Add Your Change To The The Image

This could be a `bundle update`, or installing a CLI tool.

Once you make the change **DON'T EXIT THE IMAGE YET**.

The changes **only** save if you commit them.

Grab the Container ID and then exit.

### Commit The Change

Open a new Terminal and find the container id for the image you made the change in.

commit

```bash
docker commit CONTAINER_ID <image-name>
```

Example

```bash
docker commit 71HN7K1GCDd0183 jelaniwoods/appdev-ruby2_6_5
```

### Push to Docker Hub

```bash
docker push <image-name>
```

Example

```bash
docker push jelaniwoods/appdev-ruby2_6_5
```

## Creating a Docker Image for Gitpod

### Start From Template Docker

<https://github.com/firstdraft/appdev\\_template/blob/master/files/Dockerfile>

### Run Image Interactively

```bash
docker run -it <image-name>
```

### Tag and Commit

tag

```bash
docker tag username/app-name username/app-name:v1
```

commit

```bash
docker commit -m "message" CONTAINER_ID
```

### Build

In the directory conatining the `Dockefile`

```bash
docker build -t <image-name> .
```

If the `Dockerfile` is named something else:

```bash
docker build -t <image-name> . -f <path-to-file-name>
```


---

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