Reorganize documentation for new website (#213)

This PR should be merged after the new website is deployed.

- [x] Rename files
- [x] Add front matter section to all `.md` files in the book (necessary for Zola)
- [x] Change all internal links to use Zola's linking system that checks broken links
- [x] Some updates to documentation contents and organization

Co-authored-by: Alex Auvolat <alex@adnab.me>
Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/213
Co-authored-by: Alex <alex@adnab.me>
Co-committed-by: Alex <alex@adnab.me>

1 files changed, 71 insertions, 0 deletions

diff --git a/doc/book/connect/fs.md b/doc/book/connect/fs.md
new file mode 100644
index 00000000..6d9a5a68
--- /dev/null
+++ b/doc/book/connect/fs.md
@@ -0,0 +1,71 @@
++++
+title = "FUSE (s3fs, goofys, s3backer...)"
+weight = 25
++++
+
+**WARNING! Garage is not POSIX compatible.
+Mounting S3 buckets as filesystems will not provide POSIX compatibility.
+If you are not careful, you will lose or corrupt your data.**
+
+Do not use these FUSE filesystems to store any database files (eg. MySQL, Postgresql, Mongo or sqlite),
+any daemon cache (dovecot, openldap, gitea, etc.),
+and more generally any software that use locking, advanced filesystems features or make any synchronisation assumption.
+Ideally, avoid these solutions at all for any serious or production use.
+
+## rclone mount
+
+rclone uses the same configuration when used [in CLI](@/documentation/connect/cli.md) and mount mode.
+We suppose you have the following entry in your `rclone.ini` (mine is located in `~/.config/rclone/rclone.conf`):
+
+```toml
+[garage]
+type = s3
+provider = Other
+env_auth = false
+access_key_id = <access key>
+secret_access_key = <secret key>
+region = <region>
+endpoint = <endpoint>
+force_path_style = true
+acl = private
+bucket_acl = private
+```
+
+Then you can mount and access any bucket as follow:
+
+```bash
+# mount the bucket
+mkdir /tmp/my-bucket
+rclone mount --daemon garage:my-bucket /tmp/my-bucket
+
+# set your working directory to the bucket
+cd /tmp/my-bucket
+
+# create a file
+echo hello world > hello.txt
+
+# access the file
+cat hello.txt
+
+# unmount the bucket
+cd
+fusermount -u /tmp/my-bucket
+```
+
+*External link:* [rclone documentation > rclone mount](https://rclone.org/commands/rclone_mount/)
+
+## s3fs
+
+*External link:* [s3fs github > README.md](https://github.com/s3fs-fuse/s3fs-fuse#user-content-examples)
+
+## goofys
+
+*External link:* [goofys github > README.md](https://github.com/kahing/goofys#user-content-usage)
+
+## s3backer
+
+*External link:* [s3backer github > manpage](https://github.com/archiecobbs/s3backer/wiki/ManPage)
+
+## csi-s3
+
+*External link:* [csi-s3 Github > README.md](https://github.com/ctrox/csi-s3)