PhotoStructure for Docker

December 3, 2019

These are instructions for advanced users, wanting to run PhotoStructure for Servers via Docker.

Background reading #

You should read the pros and cons of both Docker and Node editions before continuing.
Docker-compose may be easier to use than these instructions, which use docker directly, because:
- upgrades are automatic
- adding and removing volumes to scan into your library is easy
The downside is that it’s one more software package that you need to install, and it may not be available on your host machine. The instructions for docker-compose are here.
If you want imported volumes in your library to be portable across machines, please read what’s a “volume?” (hint: skip to the last section and create .uuid files for all the volumes you import).

System requirements #

The docker images run under linux x64 Docker hosts.

PhotoStructure containers require at least 2GB of RAM during imports. You’ll see ENOMEM errors if you run within a 1GB container. PhotoStructure imports run faster when more RAM and more CPU are allocated to the container.

Install Docker #

Follow these instructions for docker. If you’re on Ubuntu, follow these steps.

Note you need to use either Docker or Docker Compose: don’t use both simultaneously.

Docker volume setup #

PhotoStructure writes into 4 directories that must be mounted via docker volumes.

The following examples set up PhotoStructure to scan both a mounted external hard drive at /mnt/Photos backup and all files found in $HOME/Pictures. You’ll want to edit these examples to be relevant to your setup.

`/ps/library` #

This is where your PhotoStructure Library will be stored. It must be readable and writable by the PhotoStructure container, and have sufficient free space.

If your library is on a remote volume (mounted from a NAS to your docker host, for example), you must add -e PS_FORCE_LOCAL_DB_REPLICA=1 to your docker run command (or uncomment the line in the example docker-compose.yml). SQLite’s WAL mode doesn’t work reliably on remote filesystems, and this flag tells PhotoStructure to read and write from a local SQLite database replica (stored in /ps/tmp) to work around this issue.

`/ps/tmp` #

This is PhotoStructure’s “scratch” directory.

/ps/tmp must be on a local disk.
This volume should have at least 16-32 GB free.
If you’ve got an SSD, use that: this directory will see a lot of reads and writes.
If you can pick (or create) a volume that doesn’t have data integrity protection, on-the-fly compression, or on-the-fly file de-duplication. This will make imports faster as well as reduce system load.
PhotoStructure automatically prunes old and unused files from the scratch directory: it shouldn’t take much space unless an import is running.

`/ps/config` #

This is where PhotoStructure stores system settings.

`/ps/logs` #

This is where PhotoStructure stores logfiles. Normally PhotoStructure should be mostly quiet, unless you “send recent logs,” or set PS_LOG_LEVEL to something like info.

PhotoStructure deletes logfiles older than 1 week automatically (as of v0.8.4).

Directories to import #

To add directories you want to import into your PhotoStructure library, simply add them as bind volumes to your container. The following example configurations include a couple examples.
PhotoStructure changes the default of PS_SCAN_ALL_DRIVES to be true when run under Docker.
If you would like to ensure that PhotoStructure doesn’t change anything in the directories you import, you can mount these volumes read-only, with 2 caveats:
- You will need to drop a .uuid file in the root of these volumes if you want your library to be portable.
- This will prevent PhotoStructure from being able to write sidecars next to your originals to save metadata changes you make from within the UI.

Directories to omit #

PhotoStructure will import all mounted directories recursively. PhotoStructure respects NoMedia files, and will exclude those directories from being imported. (learn more)

Advanced settings #

PhotoStructure has a bunch of settings that are only configurable outside of the PhotoStructure UI.

Docker users may find it’s easiest to use environment variables to override settings. Read more about PhotoStructure’s use of environment variables.

Library ownership #

Dockerized applications run as root by default. This results in the files in your library as being owned by root.

Running PhotoStructure as a non-root user is more secure.

The following script runs docker run with the --user option, which makes PhotoStructure run as the current user. Feel free to change this to whatever user you want, but this user needs to be able to read and write to /ps/library, /ps/tmp, /ps/config, and /ps/logs (and read from any bind mounts that contain photos and videos).

Networking setup #

The PS_HTTP_PORT environment variable defaults to 1787 but can be changed to a different port to suit.
If you set up a reverse HTTPS proxy via nginx and find that dynamic updates (like the progress status) aren’t showing up, add this to your nginx config:

proxy_http_version 1.1;
proxy_set_header Connection "";

Example Docker setup #

(On a Synology NAS? Skip down to those instructions.)

This shell script can be saved to make future upgrades easier. See the docker documentation for more details.


PSLIBRARY="$HOME/PhotoStructure" # < CHANGE THIS LINE
mkdir -p $PSLIBRARY

# This must be a fast, local disk with many gigabytes free:
PSTMP="/tmp/ps-$USER"
mkdir -p "$PSTMP"

# This directory stores your "system settings". This directory must not be
# the same as the one used by PhotoStructure for Desktops.
PSCONFIG="$HOME/.config/PhotoStructure-docker"
mkdir -p "$PSCONFIG"

# This directory stores PhotoStructure logfiles.
PSLOGS="$HOME/.config/PhotoStructure/logs"
mkdir -p "$PSLOGS"

docker run \
  --name photostructure \
  --detach \
  --user $(id -u):$(id -g) `# < optional: see the "Library ownership" section above.` \
  --restart on-failure `# < optional: starts PhotoStructure on boot.` \
  --stop-timeout 120 `# < gives PhotoStructure 2 minutes to shut down cleanly.` \
  --publish 1787:1787 \
  -e TZ="$(cat /etc/timezone)" \
  -v "$PSLIBRARY":/ps/library \
  -v "$PSTMP":/ps/tmp \
  -v "$PSCONFIG":/ps/config \
  -v "$PSLOGS":/ps/logs \
  -v "/mnt/Photos backup":/photos-backup/    `# < CHANGE THIS LINE` \
  -v "$HOME"/Pictures:/pictures/             `# < CHANGE THIS LINE` \
  photostructure/server

In case of error #

If the PhotoStructure doesn’t spin up successfully, try replacing the --detach line with these lines:

 -e PS_LOG_LEVEL=info
 -e PS_TAIL_LOGS=1

This runs PhotoStructure in --verbose mode. Note that this can be pretty chatty, but good for debugging why PhotoStructure is grumpy. Use PS_LOG_LEVEL=warn for less output, and PS_LOG_LEVEL=debug for more output.

Still stuck? Click the chat button and we’ll help diagnose what’s amiss.

Once you’ve fixed the issue, replace these lines back to --detach.

Welcome to PhotoStructure! #

Open http://localhost:1787 in a browser to complete installation. Firefox, Chrome, and Safari are supported.

While you wait for your import to complete, check out these getting-started tips!

How to stop PhotoStructure #

docker stop photostructure

(replace photostructure with the name of your PhotoStructure docker container)

If you’re wondering why it’s taking a while to shut down, this is why.

How to restart PhotoStructure #

docker start photostructure

How to upgrade PhotoStructure #

Automatic upgrades via Watchtower (recommended) #

If you don’t mind all of your Docker containers to be upgraded automatically, use Watchtower:

docker run -d \
    --name watchtower \
    -v /var/run/docker.sock:/var/run/docker.sock \
    containrrr/watchtower

If you only want your PhotoStructure container to be upgraded automatically, refer to the Watchtower documentation, and how the watchtower container is set up with docker-compose.

Manual upgrade process #

Step 1: Pull the new image #

docker pull photostructure/server

Step 2: Shut down the outdated container #

Select “Shutdown” from the nav menu within the PhotoStructure, or run:

docker stop -t 60 photostructure

Step 3: Rename the outdated container #

docker rename photostructure photostructure_old

Step 4: Start a new container #

docker run \
  --name photostructure \
  --volumes-from photostructure_old \
  `# <copy and paste all the non-volume options you set in step 3, like --user, --expose and -e >`
  photostructure/server

Step 5: Remove the outdated container #

docker rm photostructure_old

Uninstalling PhotoStructure #

docker rm --force photostructure
As you see fit, remove your LIBRARY, CONFIG, LOG, and TMP directories, but take care not to delete photos and videos you want to keep! If you want to keep the originals in your library, but remove PhotoStructure’s preview images and videos, you can delete the $LIBRARY/.photostructure/previews directory.

Synology docker instructions #

PhotoStructure’s docker image runs happily on intel x64 compatible Synology NAS devices. First install the Docker package via Main Menu > Package Center.

Install on Synology #

Unfortunately, Synology DSM’s Docker interface doesn’t support running containers with --user. This results in your library files being owned by root. It also is less secure to run PhotoStructure as root (even within a Docker container).

Because of these two issues, we recommend setting up the docker container via ssh rather than via the pointy-clicky Synology DSM interface.

Via ssh #

Enable ssh on your NAS
Set up the above instructions, but change docker run to sudo docker run.

Via Synology DSM #

Click Main Menu > Docker
Click the Image tab
Click Add > Add from URL
Enter https://hub.docker.com/r/photostructure/server
Pick latest
Wait for the image to download (it’s 300MB, it may take a minute). You’ll see a system notification when it’s done.
Click Launch
Do not select high privilege. You can select resource limitation, but give PhotoStructure at least 2GB.
Click Advanced Settings.
You may want to enable auto-start under the Advanced Settings tab.
Click the Volume tab. Read about the required volumes, and then add entries for
- /ps/library
- /ps/tmp
- /ps/logs
- /ps/config
- and any existing directories you want to import into your library.
Configure the network port as you’d like it. You can just map port 1787 directly.
Launch the new container by clicking the power switch to the right, and wait for it to start successfully. If it fails, check under the Log tab. Email or chat with us if you need help!

Upgrade on Synology #

Consider using Watchtower, which makes upgrades automatic.

If you’d rather do it manually:

Click Main Menu > Docker
Click the Container tab
Click your PhotoStructure container to select it
Click Settings > Export
Select Export container settings (you don’t need to store the container contents).
The export should be a small JSON file. Store it locally or on your NAS.
With your PhotoStructure container still selected, make sure it isn’t running. If it is, select Action > Stop.
Click Action > Delete. (this is scary, but as long as you correctly mounted /ps/library, your library will be on your NAS, not inside this container).
Click the Image tab
Click Add > Add from URL
Enter https://hub.docker.com/r/photostructure/server
Pick latest
Wait for the image to download (it’s 300MB, it may take a minute). You’ll see a system notification when it’s done.
Return to the Container tab, and click Settings > Import
Import the JSON file you exported in step 6.
Launch the new container by clicking the power switch to the right

Edit history #

September 22, 2020 #

Switched to --restart on-failure
Added --stop-timeout 120

August 7, 2020 #

Set up --user instructions
Normal users don’t have read/write to docker volumes, so /ps/log and /ps/cache defaults are bind mounts in the example now.

August 4, 2020 #

Added more detail about the different volumes
Removed --init from the docker run command, as v0.8.3 doesn’t require it anymore
Added section for docker on Synology
Pulled docker-compose instructions into new doc

July 31, 2020 #

Systemd start-on-boot configurations were replaced with docker’s built-in restart: unless-stopped functionality.
Added config fix for https reverse proxy issues with Server-side events.
Clarified when .uuid files were needed (only for imported volumes, not the library itself).

July 20, 2020 #

If you used versions prior to 0.8, these instructions have changed. We simplified the instructions to be vanilla Docker,although you’re free to use docker-compose if you prefer.

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