# s3qlを使用して、ConoHaのUbuntu VMにObject Storageをマウントする手順

---

<br>
<br>
<br>
<br>
<br>

## 環境

```bash
~$ cat /etc/os-release
```

> NAME="Debian GNU/Linux"
>
> VERSION_ID="8"

---

<br>
<br>
<br>
<br>
<br>

## 手順

```bash
~$ sudo apt-get install python-openstackclient s3ql ubuntu-cloud-keyring
~$ mkdir -p ~/mnt/s3ql
~$ mkdir ~/.s3ql && install -b -m 600 /dev/null ~/.s3ql/authinfo2
~$ nano ~/.s3ql/authinfo2
```

### ~/.s3ql/authinfo2

```
[swift]
backend-login: gnct********:gncu********
backend-password: PASSWORD
storage-url: swiftks://identity.REGION.conoha.io/REGION:CONTAINER
```

* PASSWORD
* REGION ...今回は「tyo1」
* CONTAINER ...予めCUIクライアントで作成しておいたコンテナの名前

```bash
~$ mkfs.s3ql --plain --authfile ~/.s3ql/authinfo2 --debug swiftks://identity.REGION.conoha.io/REGION:CONTAINER
```

> YYYY-MM-DD hh:mm:ss.000 ##### MainThread s3ql.backends.common.get_ssl_context: Reading default CA certificates.
>
> YYYY-MM-DD hh:mm:ss.000 ##### MainThread s3ql.backends.swift._do_request: _do_request(): start with parameters ('GET', '/', None, {'limit': 1}, None, None)
>
> YYYY-MM-DD hh:mm:ss.000 ##### MainThread s3ql.backends.swift._do_request: _do_request(): no active connection, calling _get_conn()
>
> YYYY-MM-DD hh:mm:ss.000 ##### MainThread s3ql.backends.swiftks._get_conn: _get_conn(): start
>
>
>
> ...
>
>
>
> YYYY-MM-DD hh:mm:ss.000 ##### MainThread s3ql.backends.swift._do_request_inner: writing body data
>
> YYYY-MM-DD hh:mm:ss.000 ##### MainThread s3ql.mkfs.main: Wrote ### bytes of compressed metadata.

```bash
~$ mount.s3ql --allow-other swiftks://identity.REGION.conoha.io/REGION:CONTAINER ~/mnt/s3ql
```

> Using # upload threads.
>
> Autodetected ##### file descriptors available for cache entries
>
> Using cached metadata.
>
> Setting cache size to #### MB
>
> Mounting filesystem...
>
> fusermount: user has no write access to mountpoint /home/USERNAME/mnt/s3ql
>
> fuse_mount failed

```bash
~$ sudo chown USERNAME:GROUPNAME ~/mnt/s3ql
~$ mount.s3ql --allow-other swiftks://identity.REGION.conoha.io/REGION:CONTAINER ~/mnt/s3ql
```

> Using # upload threads.
>
> Autodetected ##### file descriptors available for cache entries
>
> Using cached metadata.
>
> Setting cache size to #### MB
>
> Mounting filesystem...
>
> fusermount: option allow_other only allowed if 'user_allow_other' is set in /etc/fuse.conf
>
> fuse_mount failed

```bash
~$ sudo nano /etc/fuse.conf
```

### /etc/fuse.conf

```
# /etc/fuse.conf - Configuration file for Filesystem in Userspace (FUSE)

# Set the maximum number of FUSE mounts allowed to non-root users.
# The default is 1000.
#mount_max = 1000

# Allow non-root users to specify the allow_other or allow_root mount options.
#user_allow_other
user_allow_other
```

```bash
~$ mount.s3ql --allow-other swiftks://identity.REGION.conoha.io/REGION:CONTAINER ~/mnt/s3ql
```

> Using # upload threads.
>
> Autodetected ##### file descriptors available for cache entries
>
> Using cached metadata.
>
> Setting cache size to #### MB
>
> Mounting filesystem...

```bash
~$ ls ~/mnt/s3ql
```

> lost+found

```bash
~$ df -h
```

> Filesystem                                   Size  Used Avail Use% Mounted on
>
> /dev/vda1                                     ###G   ###G  ###G  ##% /
>
>
>
> ...
>
>
>
> swiftks://identity.REGION.conoha.io/REGION:CONTAINER  1.0T     0  1.0T   0% /home/USERNAME/mnt/s3ql

```bash
~$ sudo nano /etc/init.d/s3ql
```

### /etc/init.d/s3ql

```bash
#!/bin/bash
#
# description: S3QL Auto Mount
#
# Source function library.
. /etc/init.d/functions
#
AUTHFILE="/home/USERNAME/.s3ql/authinfo2"
BUCKET="swiftks://identity.REGION.conoha.io/REGION:CONTAINER"
MOUNTPOINT="/home/USERNAME/mnt/s3ql"
OPTIONS="--allow-other"
start() {
        echo -n $"Mounting S3QL: "
        mount | grep $MOUNTPOINT > /dev/null
        if [ $? -eq 0 ];then
                echo $"Cannot mount $MOUNTPOINT."
                echo
                exit 1
        fi
        echo
        fsck.s3ql --batch $BUCKET
        mount.s3ql $OPTIONS $BUCKET $MOUNTPOINT
        RETVAL=$?
        [ $RETVAL -eq 0 ] && success || failure
        echo
}
stop() {
        echo -n $"Unmounting S3QL: "
        mount | grep $MOUNTPOINT > /dev/null
        if [ $? -ne 0 ];then
                echo
                exit 1
        fi
        umount.s3ql $MOUNTPOINT && success || failure
        echo
}
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    *)
        echo "Usage: `basename $0` {start|stop}"
        exit 1
        ;;
esac

```

```bash
~$ sudo chmod 755 /etc/init.d/s3ql
~$ sudo /etc/init.d/s3ql start
```