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docker: update docs

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Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
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Nicola Murino 2023-05-23 13:06:42 +02:00
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docker/README.md
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@ -9,13 +9,11 @@ SFTPGo provides an official Docker image, it is available on both [Docker Hub](h
- [v2.5.1-alpine, v2.5-alpine, v2-alpine, alpine](https://github.com/drakkan/sftpgo/blob/v2.5.1/Dockerfile.alpine)
- [v2.5.1-slim, v2.5-slim, v2-slim, slim](https://github.com/drakkan/sftpgo/blob/v2.5.1/Dockerfile)
- [v2.5.1-alpine-slim, v2.5-alpine-slim, v2-alpine-slim, alpine-slim](https://github.com/drakkan/sftpgo/blob/v2.5.1/Dockerfile.alpine)
- [v2.5.1-distroless-slim, v2.5-distroless-slim, v2-distroless-slim, distroless-slim](https://github.com/drakkan/sftpgo/blob/v2.5.1/Dockerfile.distroless)
- [edge](../Dockerfile)
- [edge-plugins](../Dockerfile)
- [edge-alpine](../Dockerfile.alpine)
- [edge-slim](../Dockerfile)
- [edge-alpine-slim](../Dockerfile.alpine)
- [edge-distroless-slim](../Dockerfile.distroless)
## How to use the SFTPGo image
@ -91,8 +89,6 @@ The logs are available through Docker's container log:
docker logs some-sftpgo
```
**Note:** [distroless](../Dockerfile.distroless) image contains only a statically linked sftpgo binary and its minimal runtime dependencies. Shell is not available on this image.
### Container graceful shutdown
```shell
@ -190,11 +186,9 @@ RUN chown -R 1100:1100 /etc/sftpgo && chown 1100:1100 /var/lib/sftpgo /srv/sftpg
USER 1100:1100
```
**Note:** the above Dockerfile will not work if you use the [distroless](../Dockerfile.distroless) image as base since the `chown` command is not available there.
## Image Variants
The `sftpgo` images comes in many flavors, each designed for a specific use case. The `edge`, `edge-slim`, `edge-alpine`, `edge-alpine-slim` and `edge-distroless-slim` tags are updated after each new commit.
The `sftpgo` images comes in many flavors, each designed for a specific use case. The `edge`, `edge-slim`, `edge-alpine`, and `edge-alpine-slim` tags are updated after each new commit.
### `sftpgo:<version>`
@ -206,15 +200,6 @@ This image is based on the popular [Alpine Linux project](https://alpinelinux.or
This variant is highly recommended when final image size being as small as possible is desired. The main caveat to note is that it does use [musl libc](https://musl.libc.org/) instead of [glibc and friends](https://www.etalabs.net/compare_libcs.html), so certain software might run into issues depending on the depth of their libc requirements. However, most software doesn't have an issue with this, so this variant is usually a very safe choice. See [this Hacker News comment thread](https://news.ycombinator.com/item?id=10782897) for more discussion of the issues that might arise and some pro/con comparisons of using Alpine-based images.
### `sftpgo:<version>-distroless`
This image is based on the popular [Distroless project](https://github.com/GoogleContainerTools/distroless). We use the latest Debian based distroless image as base.
Distroless variant contains only a statically linked sftpgo binary and its minimal runtime dependencies and so it doesn't allow shell access (no shell is installed).
SQLite support is disabled since it requires CGO and so a C runtime which is not installed.
The default data provider is `bolt`, all the supported data providers except `sqlite` work.
We only provide the slim variant and so the optional `git` dependency is not available.
### `sftpgo:<suite>-slim`
These tags provide a slimmer image that does not include `jq` and the optional `git` and `rsync` dependencies.