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64 lines
2 KiB
Markdown
64 lines
2 KiB
Markdown
---
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title: "Mount Object Storage Locally using S3 Fuse"
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date: 2022-02-04T23:39:25-05:00
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draft: false
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tags: ["Storage"]
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math: false
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---
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On most cloud providers, object storage is cheaper than paying for the equivalent size in block storage. Using FUSE, we can mount S3 compatible object storage with the command `s3fs`. Do note, that there are a few downsides with mounting object storage as documented on their [README](https://github.com/s3fs-fuse/s3fs-fuse/blob/master/README.md):
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- random writes or appends to files require rewriting the entire object, optimized with multi-part upload copy
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- metadata operations such as listing directories have poor performance due to network latency
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- non-AWS providers may have eventual consistency so reads can temporarily yield stale data (AWS offers read-after-write consistency since Dec 2020)
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- no atomic renames of files or directories
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- no coordination between multiple clients mounting the same bucket
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- no hard links
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- inotify detects only local modifications, not external ones by other clients or tools
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Lets get started by installing `s3fs`:
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```bash
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# For Fedora
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sudo dnf install s3fs-fuse
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# For Ubuntu/Debian
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sudo apt install s3fs
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```
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We'll then need to edit `/etc/passwd-s3fs` with our object storage access and secret keys:
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```yaml
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AccessKeyHere:SecretKeyHere
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```
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Then we need to set it so that only root can read `/etc/passwd-s3fs`
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```bash
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sudo chmod 600 /etc/passwd-s3fs
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```
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Now we can test to see if we can access our bucket:
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```bash
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sudo s3fs bucketname \
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/mnt/mountpoint \
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-o url=https://us-east-1.linodeobjects.com \
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-o allow_other
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```
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If we're successful we should be able to access `/mnt/mountpoint`.
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To unmount:
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```bash
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sudo umount /mnt/mountpoint
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```
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To mount automatically during reboot, add the following to `/etc/fstab`:
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```
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bucketname /mnt/mountpoint fuse.s3fs _netdev,allow_other,url=https://us-east-1.linodeobjects.com 0 0
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```
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After editing `/etc/fstab` you can run `sudo mount -a` in order for it to load and mount any new entries.
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