BlobFuse2 is a Microsoft maintained utility to mount a remote Azure Storage Account Blob Container or folder into the Linux file system and then interact with it as if it was local.
You need some directories to serve as a cache and mount point. You could put them anywhere such as in your home directory but I have created a 120GB disk an mounted it as /u1
| Cache Directory | Azure Storage Account Container Mount Point |
| /u1/blobfuse/cache | /u1/azure |
The Cache Directory stores files that you copy into the mount point before they get up loaded to Azure
Download and install Microsoft apt repository configuration
wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb
dpkg -i ./packages-microsoft-prod.deb
apt-get update
apt-get install blobfuse2
Modify /etc/fuse.conf and uncomment user_allow_other
This allows more than just the user that mounted the storage account to access the files in Azure.
# presence of the option.
user_allow_other
# mount_max = n - this option sets the maximum number of mounts.
Config blobfuse2.yaml
# Refer ./setup/baseConfig.yaml for full set of config parameters
allow-other: true
logging:
type: syslog
level: log_debug
components:
- libfuse
- file_cache
- attr_cache
- azstorage
libfuse:
attribute-expiration-sec: 120
entry-expiration-sec: 120
negative-entry-expiration-sec: 240
file_cache:
path: /u1/blobfuse/cache
# timeout-sec: 120
max-size-mb: 8192
cleanup-on-start: true
allow-non-empty-temp: true
stream:
block-size-mb: 8
blocks-per-file: 3
cache-size-mb: 1024
attr_cache:
timeout-sec: 7200
azstorage:
type: block
account-name: mystorageaccount
# account-key: mystoragekey
endpoint: https://mystorageaccount.blob.core.windows.net
mode: sas
container: mycontainer
sas: ?st=_START_DATE_&se=_EXPIRY_DATE_&sp=racwdl&sv=2021-06-08&sr=c&sig=_SIG_HERE_
Manual mount command
blobfuse2 mount /u1/azure --config-file=./blobfuse2.yaml
Create a SAS signed by Access Key using az cli
az storage container generate-sas \
--account-name mystorageaccount \
--name mycontainer \
--permissions acdlrw \
--start 2022-12-06 \
--expiry 2024-12-07 \
--account-key "_STORAGE_ACCOUNT_ACCESS_KEY_"
To get the _STORAGE_ACCOUNT_ACCESS_KEY_ from the Azure Portal
Show and copy the Key
Starting blobfuse2 at boot systemd
Edit to taste then copy the following into /etc/systemd/system/blobfuse2.service
sudo systemctl daemon-reload
Contents of blobfuse2.service file
Not sure if i’m doing it right but I had to add –foreground to get the service to run and stay up.
[Unit]
Description=A virtual file system adapter for Azure Blob storage.
After=network-online.target
Requires=network-online.target
WorkingDirectory=/u1/blobfuse2
[Service]
User=ja
Group=ja
Environment=BlobMountingPoint=/u1/azure
Environment=BlobTmp=/u1/blobfuse2/cache
Environment=BlobConfigFile=/u1/blobfuse2/blobfuse2.yaml
Environment=BlobLogLevel=LOG_WARNING
Environment=attr_timeout=240
Environment=entry_timeout=240
Environment=negative_timeout=120
Type=forking
ExecStart=/usr/bin/blobfuse2 mount ${BlobMountingPoint} --tmp-path=${BlobTmp} --config-file=${BlobConfigFile} --log-level=${BlobLogLevel}
ExecStop=/usr/bin/fusermount -u ${BlobMountingPoint}
[Install]
WantedBy=multi-user.target
Stopping rsync from copying everything back up to azure after a restart
Use --ignore-existing
Caution with --delete it will delete everything in target that is not in source
rsync -av --delete --ignore-existing /u1/backup/ofs/ /u1/azure/
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