Docker container for CrashPlan

This project implements a Docker container for CrashPlan.

The GUI of the application is accessed through a modern web browser (no installation or configuration needed on the client side) or via any VNC client.

This Docker container can be used with all CrashPlan products: Essential, Professional, Enterprise, MSPs and Small Business (no longer sold).

CrashPlan provides peace of mind through secure, scalable, and straightforward endpoint data backup. We help organizations recover from any worst-case scenario, whether it is a disaster, simple human error, a stolen laptop, ransomware or an as-of-yet undiscovered calamity.

Table of Content

Quick Start
Usage
Docker Compose File
Docker Image Versioning
Docker Image Update
- Synology
- unRAID
User/Group IDs
Accessing the GUI
Security
Reverse Proxy
- Routing Based on Hostname
- Routing Based on URL Path
Shell Access
Taking Over Existing Backup
Why CrashPlan Self Update Is Disabled
Troubleshooting
Support or Contact

Quick Start

Important

The Docker command provided in this quick start is given as an example and parameters should be adjusted to your need.

Launch the CrashPlan docker container with the following command:

docker run -d \
    --name=crashplan-pro \
    -p 5800:5800 \
    -v /docker/appdata/crashplan-pro:/config:rw \
    -v /home/user:/storage:ro \
    jlesage/crashplan-pro

Where:

/docker/appdata/crashplan-pro: This is where the application stores its configuration, states, log and any files needing persistency.
/home/user: This location contains files from your host that need to be accessible to the application.

Browse to http://your-host-ip:5800 to access the CrashPlan GUI. Files from the host appear under the /storage folder in the container.

Usage

docker run [-d] \
    --name=crashplan-pro \
    [-e <VARIABLE_NAME>=<VALUE>]... \
    [-v <HOST_DIR>:<CONTAINER_DIR>[:PERMISSIONS]]... \
    [-p <HOST_PORT>:<CONTAINER_PORT>]... \
    jlesage/crashplan-pro

Parameter	Description
-d	Run the container in the background. If not set, the container runs in the foreground.
-e	Pass an environment variable to the container. See the Environment Variables section for more details.
-v	Set a volume mapping (allows to share a folder/file between the host and the container). See the Data Volumes section for more details.
-p	Set a network port mapping (exposes an internal container port to the host). See the Ports section for more details.

Environment Variables

To customize some properties of the container, the following environment variables can be passed via the -e parameter (one for each variable). Value of this parameter has the format <VARIABLE_NAME>=<VALUE>.

Variable	Description	Default
`USER_ID`	ID of the user the application runs as. See User/Group IDs to better understand when this should be set.	`1000`
`GROUP_ID`	ID of the group the application runs as. See User/Group IDs to better understand when this should be set.	`1000`
`SUP_GROUP_IDS`	Comma-separated list of supplementary group IDs of the application.	(no value)
`UMASK`	Mask that controls how permissions are set for newly created files and folders. The value of the mask is in octal notation. By default, the default umask value is `0022`, meaning that newly created files and folders are readable by everyone, but only writable by the owner. See the online umask calculator at http://wintelguy.com/umask-calc.pl.	`0022`
`LANG`	Set the locale, which defines the application's language, if supported. Format of the locale is `language[_territory][.codeset]`, where language is an ISO 639 language code, territory is an ISO 3166 country code and codeset is a character set, like `UTF-8`. For example, Australian English using the UTF-8 encoding is `en_AU.UTF-8`.	`en_US.UTF-8`
`TZ`	TimeZone used by the container. Timezone can also be set by mapping `/etc/localtime` between the host and the container.	`Etc/UTC`
`KEEP_APP_RUNNING`	When set to `1`, the application will be automatically restarted when it crashes or terminates.	`0`
`APP_NICENESS`	Priority at which the application should run. A niceness value of -20 is the highest priority and 19 is the lowest priority. The default niceness value is 0. NOTE: A negative niceness (priority increase) requires additional permissions. In this case, the container should be run with the docker option `--cap-add=SYS_NICE`.	`0`
`INSTALL_PACKAGES`	Space-separated list of packages to install during the startup of the container. List of available packages can be found at https://pkgs.alpinelinux.org. ATTENTION: Container functionality can be affected when installing a package that overrides existing container files (e.g. binaries).	(no value)
`PACKAGES_MIRROR`	Mirror of the repository to use when installing packages. List of mirrors is available at https://mirrors.alpinelinux.org.	(no value)
`CONTAINER_DEBUG`	Set to `1` to enable debug logging.	`0`
`DISPLAY_WIDTH`	Width (in pixels) of the application's window.	`1920`
`DISPLAY_HEIGHT`	Height (in pixels) of the application's window.	`1080`
`DARK_MODE`	When set to `1`, dark mode is enabled for the application.	`0`
`WEB_AUDIO`	When set to `1`, audio support is enabled, meaning that any audio produced by the application is played through the browser. Note that audio is not supported for VNC clients.	`0`
`WEB_AUTHENTICATION`	When set to `1`, the application' GUI is protected via a login page when accessed via a web browser. Access is allowed only when providing valid credentials. NOTE: This feature requires secure connection (`SECURE_CONNECTION` environment variable) to be enabled.	`0`
`WEB_AUTHENTICATION_USERNAME`	Optional username to configure for the web authentication. This is a quick and easy way to configure credentials for a single user. To configure credentials in a more secure way, or to add more users, see the Web Authentication section.	(no value)
`WEB_AUTHENTICATION_PASSWORD`	Optional password to configure for the web authentication. This is a quick and easy way to configure credentials for a single user. To configure credentials in a more secure way, or to add more users, see the Web Authentication section.	(no value)
`SECURE_CONNECTION`	When set to `1`, an encrypted connection is used to access the application's GUI (either via a web browser or VNC client). See the Security section for more details.	`0`
`SECURE_CONNECTION_VNC_METHOD`	Method used to perform the secure VNC connection. Possible values are `SSL` or `TLS`. See the Security section for more details.	`SSL`
`SECURE_CONNECTION_CERTS_CHECK_INTERVAL`	Interval, in seconds, at which the system verifies if web or VNC certificates have changed. When a change is detected, the affected services are automatically restarted. A value of `0` disables the check.	`60`
`WEB_LISTENING_PORT`	Port used by the web server to serve the UI of the application. This port is used internally by the container and it is usually not required to be changed. By default, a container is created with the default bridge network, meaning that, to be accessible, each internal container port must be mapped to an external port (using the `-p` or `--publish` argument). However, if the container is created with another network type, changing the port used by the container might be useful to prevent conflict with other services/containers. NOTE: a value of `-1` disables listening, meaning that the application's UI won't be accessible over HTTP/HTTPs.	`5800`
`VNC_LISTENING_PORT`	Port used by the VNC server to serve the UI of the application. This port is used internally by the container and it is usually not required to be changed. By default, a container is created with the default bridge network, meaning that, to be accessible, each internal container port must be mapped to an external port (using the `-p` or `--publish` argument). However, if the container is created with another network type, changing the port used by the container might be useful to prevent conflict with other services/containers. NOTE: a value of `-1` disables listening, meaning that the application's UI won't be accessible over VNC.	`5900`
`VNC_PASSWORD`	Password needed to connect to the application's GUI. See the VNC Password section for more details.	(no value)
`ENABLE_CJK_FONT`	When set to `1`, open-source computer font `WenQuanYi Zen Hei` is installed. This font contains a large range of Chinese/Japanese/Korean characters.	`0`
`CRASHPLAN_SRV_MAX_MEM`	Maximum amount of memory the CrashPlan Engine is allowed to use. One of the following memory unit (case insensitive) should be added as a suffix to the size: `G`, `M` or `K`. By default, when this variable is not set, a maximum of 1024MB (`1024M`) of memory is allowed. NOTE: Setting this variable as the same effect as running the `java mx VALUE, restart` command from the CrashPlan command line.	`1024M`

Deployment Considerations

Many tools used to manage Docker containers extract environment variables defined by the Docker image and use them to create/deploy the container. For example, this is done by:

The Docker application on Synology NAS
The Container Station on QNAP NAS
Portainer
etc.

While this can be useful for the user to adjust the value of environment variables to fit its needs, it can also be confusing and dangerous to keep all of them.

A good practice is to set/keep only the variables that are needed for the container to behave as desired in a specific setup. If the value of variable is kept to its default value, it means that it can be removed. Keep in mind that all variables are optional, meaning that none of them is required for the container to start.

Removing environment variables that are not needed provides some advantages:

Prevents keeping variables that are no longer used by the container. Over time, with image updates, some variables might be removed.
Allows the Docker image to change/fix a default value. Again, with image updates, the default value of a variable might be changed to fix an issue, or to better support a new feature.
Prevents changes to a variable that might affect the correct function of the container. Some undocumented variables, like PATH or ENV, are required to be exposed, but are not meant to be changed by users. However, container management tools still show these variables to users.
There is a bug with the Container Station on QNAP and the Docker application on Synology, where an environment variable without value might not be allowed. This behavior is wrong: it's absolutely fine to have a variable without value. In fact, this container does have variables without value by default. Thus, removing unneeded variables is a good way to prevent deployment issue on these devices.

Data Volumes

The following table describes data volumes used by the container. The mappings are set via the -v parameter. Each mapping is specified with the following format: <HOST_DIR>:<CONTAINER_DIR>[:PERMISSIONS].

Container path	Permissions	Description
`/config`	rw	This is where the application stores its configuration, states, log and any files needing persistency.
`/storage`	ro	This location contains files from your host that need to be accessible to the application.

Ports

Here is the list of ports used by the container.

When using the default bridge network, ports can be mapped to the host via the -p parameter (one per port mapping). Each mapping is defined with the following format: <HOST_PORT>:<CONTAINER_PORT>. The port number used inside the container might not be changeable, but you are free to use any port on the host side.

See the Docker Container Networking documentation for more details.

Port	Protocol	Mapping to host	Description
5800	TCP	Optional	Port to access the application's GUI via the web interface. Mapping to the host is optional if access through the web interface is not wanted. For a container not using the default bridge network, the port can be changed with the `WEB_LISTENING_PORT` environment variable.
5900	TCP	Optional	Port to access the application's GUI via the VNC protocol. Mapping to the host is optional if access through the VNC protocol is not wanted. For a container not using the default bridge network, the port can be changed with the `VNC_LISTENING_PORT` environment variable.

Changing Parameters of a Running Container

As can be seen, environment variables, volume and port mappings are all specified while creating the container.

The following steps describe the method used to add, remove or update parameter(s) of an existing container. The general idea is to destroy and re-create the container:

Stop the container (if it is running):

docker stop crashplan-pro

Remove the container:

docker rm crashplan-pro

Create/start the container using the docker run command, by adjusting parameters as needed.

Note

Since all application's data is saved under the /config container folder, destroying and re-creating a container is not a problem: nothing is lost and the application comes back with the same state (as long as the mapping of the /config folder remains the same).

Docker Compose File

Here is an example of a docker-compose.yml file that can be used with Docker Compose.

Make sure to adjust according to your needs. Note that only mandatory network ports are part of the example.

version: '3'
services:
  crashplan-pro:
    image: jlesage/crashplan-pro
    ports:
      - "5800:5800"
    volumes:
      - "/docker/appdata/crashplan-pro:/config:rw"
      - "/home/user:/storage:ro"

Docker Image Versioning

Each release of a Docker image is versioned. Prior to october 2022, the semantic versioning was used as the versioning scheme.

Since then, versioning scheme changed to calendar versioning. The format used is YY.MM.SEQUENCE, where:

YY is the zero-padded year (relative to year 2000).
MM is the zero-padded month.
SEQUENCE is the incremental release number within the month (first release is 1, second is 2, etc).

Docker Image Update

Because features are added, issues are fixed, or simply because a new version of the containerized application is integrated, the Docker image is regularly updated. Different methods can be used to update the Docker image.

The system used to run the container may have a built-in way to update containers. If so, this could be your primary way to update Docker images.

An other way is to have the image be automatically updated with Watchtower. Watchtower is a container-based solution for automating Docker image updates. This is a "set and forget" type of solution: once a new image is available, Watchtower will seamlessly perform the necessary steps to update the container.

Finally, the Docker image can be manually updated with these steps:

Fetch the latest image:

docker pull jlesage/crashplan-pro

Stop the container:

docker stop crashplan-pro

Remove the container:

docker rm crashplan-pro

Create and start the container using the docker run command, with the the same parameters that were used when it was deployed initially.

Synology

For owners of a Synology NAS, the following steps can be used to update a container image.

Open the Docker application.
Click on Registry in the left pane.
In the search bar, type the name of the container (jlesage/crashplan-pro).
Select the image, click Download and then choose the latest tag.
Wait for the download to complete. A notification will appear once done.
Click on Container in the left pane.
Select your CrashPlan container.
Stop it by clicking Action->Stop.
Clear the container by clicking Action->Reset (or Action->Clear if you don't have the latest Docker application). This removes the container while keeping its configuration.
Start the container again by clicking Action->Start. NOTE: The container may temporarily disappear from the list while it is re-created.

unRAID

For unRAID, a container image can be updated by following these steps:

Select the Docker tab.
Click the Check for Updates button at the bottom of the page.
Click the update ready link of the container to be updated.

User/Group IDs

When using data volumes (-v flags), permissions issues can occur between the host and the container. For example, the user within the container may not exist on the host. This could prevent the host from properly accessing files and folders on the shared volume.

To avoid any problem, you can specify the user the application should run as.

This is done by passing the user ID and group ID to the container via the USER_ID and GROUP_ID environment variables.

To find the right IDs to use, issue the following command on the host, with the user owning the data volume on the host:

id <username>

Which gives an output like this one:

uid=1000(myuser) gid=1000(myuser) groups=1000(myuser),4(adm),24(cdrom),27(sudo),46(plugdev),113(lpadmin)

The value of uid (user ID) and gid (group ID) are the ones that you should be given the container.

Accessing the GUI

Assuming that container's ports are mapped to the same host's ports, the graphical interface of the application can be accessed via:

A web browser:

http://<HOST IP ADDR>:5800

Any VNC client:

<HOST IP ADDR>:5900

Security

By default, access to the application's GUI is done over an unencrypted connection (HTTP or VNC).

Secure connection can be enabled via the SECURE_CONNECTION environment variable. See the Environment Variables section for more details on how to set an environment variable.

When enabled, application's GUI is performed over an HTTPs connection when accessed with a browser. All HTTP accesses are automatically redirected to HTTPs.

When using a VNC client, the VNC connection is performed over SSL. Note that few VNC clients support this method. SSVNC is one of them.

SSVNC

SSVNC is a VNC viewer that adds encryption security to VNC connections.

While the Linux version of SSVNC works well, the Windows version has some issues. At the time of writing, the latest version 1.0.30 is not functional, as a connection fails with the following error:

ReadExact: Socket error while reading

However, for your convenience, an unofficial and working version is provided here:

https://github.com/jlesage/docker-baseimage-gui/raw/master/tools/ssvnc_windows_only-1.0.30-r1.zip

The only difference with the official package is that the bundled version of stunnel has been upgraded to version 5.49, which fixes the connection problems.

Certificates

Here are the certificate files needed by the container. By default, when they are missing, self-signed certificates are generated and used. All files have PEM encoded, x509 certificates.

Container Path	Purpose	Content
`/config/certs/vnc-server.pem`	VNC connection encryption.	VNC server's private key and certificate, bundled with any root and intermediate certificates.
`/config/certs/web-privkey.pem`	HTTPs connection encryption.	Web server's private key.
`/config/certs/web-fullchain.pem`	HTTPs connection encryption.	Web server's certificate, bundled with any root and intermediate certificates.

Tip

To prevent any certificate validity warnings/errors from the browser or VNC client, make sure to supply your own valid certificates.

Note

Certificate files are monitored and relevant daemons are automatically restarted when changes are detected.

VNC Password

To restrict access to your application, a password can be specified. This can be done via two methods:

By using the VNC_PASSWORD environment variable.
By creating a .vncpass_clear file at the root of the /config volume. This file should contain the password in clear-text. During the container startup, content of the file is obfuscated and moved to .vncpass.

The level of security provided by the VNC password depends on two things:

The type of communication channel (encrypted/unencrypted).
How secure the access to the host is.

When using a VNC password, it is highly desirable to enable the secure connection to prevent sending the password in clear over an unencrypted channel.

Caution

Password is limited to 8 characters. This limitation comes from the Remote Framebuffer Protocol RFC (see section 7.2.2). Any characters beyond the limit are ignored.

Web Authentication

Access to the application's GUI via a web browser can be protected with a login page. When web authentication is enabled, users have to provide valid credentials, otherwise access is denied.

Web authentication can be enabled by setting the WEB_AUTHENTICATION environment variable to 1.

See the Environment Variables section for more details on how to set an environment variable.

Important

Secure connection must also be enabled to use web authentication. See the Security section for more details.

Configuring Users Credentials

Two methods can be used to configure users credentials:

Via container environment variables.
Via password database.

Containers environment variables can be used to quickly and easily configure a single user. Username and pasword are defined via the following environment variables:

WEB_AUTHENTICATION_USERNAME
WEB_AUTHENTICATION_PASSWORD

See the Environment Variables section for more details on how to set an environment variable.

The second method is more secure and allows multiple users to be configured. The usernames and password hashes are saved into a password database, located at /config/webauth-htpasswd inside the container. This database file has the same format as htpasswd files of the Apache HTTP server. Note that password themselves are not saved into the database, but only their hash. The bcrypt password hashing function is used to generate hashes.

Users are managed via the webauth-user tool included in the container:

To add a user password: docker exec -ti <container name or id> webauth-user add <username>.
To update a user password: docker exec -ti <container name or id> webauth-user update <username>.
To remove a user: docker exec <container name or id> webauth-user del <username>.
To list users: docker exec <container name or id> webauth-user user.

Reverse Proxy

The following sections contain NGINX configurations that need to be added in order to reverse proxy to this container.

A reverse proxy server can route HTTP requests based on the hostname or the URL path.

Routing Based on Hostname

In this scenario, each hostname is routed to a different application/container.

For example, let's say the reverse proxy server is running on the same machine as this container. The server would proxy all HTTP requests sent to crashplan-pro.domain.tld to the container at 127.0.0.1:5800.

Here are the relevant configuration elements that would be added to the NGINX configuration:

map $http_upgrade $connection_upgrade {
	default upgrade;
	''      close;
}

upstream docker-crashplan-pro {
	# If the reverse proxy server is not running on the same machine as the
	# Docker container, use the IP of the Docker host here.
	# Make sure to adjust the port according to how port 5800 of the
	# container has been mapped on the host.
	server 127.0.0.1:5800;
}

server {
	[...]

	server_name crashplan-pro.domain.tld;

	location / {
	        proxy_pass http://docker-crashplan-pro;
	}

	location /websockify {
		proxy_pass http://docker-crashplan-pro;
		proxy_http_version 1.1;
		proxy_set_header Upgrade $http_upgrade;
		proxy_set_header Connection $connection_upgrade;
		proxy_read_timeout 86400;
	}
}

Routing Based on URL Path

In this scenario, the hostname is the same, but different URL paths are used to route to different applications/containers.

For example, let's say the reverse proxy server is running on the same machine as this container. The server would proxy all HTTP requests for server.domain.tld/crashplan-pro to the container at 127.0.0.1:5800.

Here are the relevant configuration elements that would be added to the NGINX configuration:

map $http_upgrade $connection_upgrade {
	default upgrade;
	''      close;
}

upstream docker-crashplan-pro {
	# If the reverse proxy server is not running on the same machine as the
	# Docker container, use the IP of the Docker host here.
	# Make sure to adjust the port according to how port 5800 of the
	# container has been mapped on the host.
	server 127.0.0.1:5800;
}

server {
	[...]

	location = /crashplan-pro {return 301 $scheme://$http_host/crashplan-pro/;}
	location /crashplan-pro/ {
		proxy_pass http://docker-crashplan-pro/;
		# Uncomment the following line if your Nginx server runs on a port that
		# differs from the one seen by external clients.
		#port_in_redirect off;
		location /crashplan-pro/websockify {
			proxy_pass http://docker-crashplan-pro/websockify/;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection $connection_upgrade;
			proxy_read_timeout 86400;
		}
	}
}

Shell Access

To get shell access to the running container, execute the following command:

docker exec -ti CONTAINER sh

Where CONTAINER is the ID or the name of the container used during its creation.

Taking Over Existing Backup

If this container is replacing a CrashPlan installation (from Linux, Windows, MAC or another Docker container), your existing backup can be taken over to avoid re-uploading all your data.

To proceed, make sure to carefully read the official documentation.

Here is a summary of what needs to be done:

Start CrashPlan Docker container. Make sure the configuration directory is not mapped to a folder used by a different CrashPlan container.
Sign in to your account.
Click the Replace Existing button to start the wizard.
Skip Step 2 - File Transfer.
Once done with the wizard, go to your device's details and click Manage Files. You will probably see missing items in the file selection. This is normal, since path to your files may be different in the container.
Update the file selection by re-adding your files. Do not unselect missing items yet.
Perform a backup. Because of deduplication, files will not be uploaded again.
Once the backup is terminated, you can remove missing items if you don't care about file versions. Else, keep missing items.

NOTE: Don't be confused by the directory structure from your old being visible in the Manage Files window. By default, your files are now located under the /storage folder.

Why CrashPlan Self Update Is Disabled

One advantage of a Docker image is that it can be versioned and predictable, meaning that a specific version of the image always behaves the same way. So if, for any reason, a new image version has a problem and doesn't work as expected, it's easy for one to revert to the previous version and be back on track.

Allowing CrashPlan to update itself obviously breaks this benefit. Also, since the container has only the minimal set of libraries and tools required to run CrashPlan, it would be easy for an automatic update to break the container by requiring new dependencies. Finally, the automatic update script is not adapted for Alpine Linux (the distribution on which this container is based on) and assumes it is running on a full-featured distribution. For example, this image doesn't have a desktop like normal installations and some of the tools required to perform the update are missing.

Troubleshooting

Crashes / Maximum Amount of Allocated Memory

If CrashPlan crashes unexpectedly with large backups, try to increase the maximum amount of memory CrashPlan is allowed to use. This can be done by:

Setting the CRASHPLAN_SRV_MAX_MEM environment variable. See the Environment Variables section for more details.
Using the solution provided by CrashPlan from its support site.

Inotify's Watch Limit

If CrashPlan exceeds inotify's max watch limit, real-time file watching cannot work properly and the inotify watch limit needs to be increased on the host, not the container.

For more details, see the CrashPlan's Linux real-time file watching errors article.

Synology

On Synology NAS, the instructions provided by the article mentioned in the previous section apply, except that the inotify's max watch limit must be set in /etc.defaults/sysctl.conf (instead of /etc/sysctl.conf) to make the setting permanent.

NOTE: After an upgrade of the DSM software, verify that the content of the file has not been overwritten.

Empty `/storage`

If the /storage folder inside the container is empty:

Make sure the folder is properly mapped to the host. This is done via the -v parameter of the docker run command. See the Usage section.
Make sure permissions and ownership of files on the host are correct and are compatible with the user under which the container application is running (defined by the USER_ID and GROUP_ID environment variables). See the User/Group IDs section.

NOTE: If running the application as root (USER_ID=0 and GROUP_ID=0) makes the files visible, it confirms that there is a permission issue.

Device Status Is Waiting For Connection

If the status of your device is stuck on Waiting for connection, clearing the the cache of CrashPlan can help resolve the issue:

Stop the container.
Remove all the content of the cache directory found under the container's configuration directory. For example, if the /config folder of the container is mapped to /docker/appdata/crashplan-pro on the host, the following command (ran on the host) would clear the cache:
```
rm -rf /docker/appdata/crashplan-pro/cache/*
```
Start the container.

Cannot Restore Files

If CrashPlan fails to restore files, make sure the location where files are restored have write permission.

A typical installation has the data to be backup under the /storage folder. This folder is usually mapped to the host with read-only permission. Thus, restoring files to /storage won't be allowed. The solution is to temporarily change the permission of the volume to read-write.

For example, if /storage is mapped to /home/user on the host, the container would need to be deleted and then re-created with the same arguments, with the exception of -v /home/user:/storage:ro that is replaced with -v /home/user:/storage:rw.

Upgrade Failed Error Message

Because the CrashPlan's self-upgrade feature is disabled in this container, an error message about failed upgrade can be seen when a new CrashPlan version is released.

To fix this, updating the container's image to the latest version will also bring the latest version of CrashPlan.

Support or Contact

Having troubles with the container or have questions? Please create a new issue.

For other great Dockerized applications, see https://jlesage.github.io/docker-apps.

Name		Name	Last commit message	Last commit date
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.github		.github
rootfs		rootfs
src/crashplan		src/crashplan
DOCKERHUB.md		DOCKERHUB.md
Dockerfile		Dockerfile
LICENSE		LICENSE
README.md		README.md
appdefs.yml		appdefs.yml

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Docker container for CrashPlan

Table of Content

Quick Start

Usage

Environment Variables

Deployment Considerations

Data Volumes

Ports

Changing Parameters of a Running Container

Docker Compose File

Docker Image Versioning

Docker Image Update

Synology

unRAID

User/Group IDs

Accessing the GUI

Security

SSVNC

Certificates

VNC Password

Web Authentication

Configuring Users Credentials

Reverse Proxy

Routing Based on Hostname

Routing Based on URL Path

Shell Access

Taking Over Existing Backup

Why CrashPlan Self Update Is Disabled

Troubleshooting

Crashes / Maximum Amount of Allocated Memory

Inotify's Watch Limit

Synology

Empty /storage

Device Status Is Waiting For Connection

Cannot Restore Files

Upgrade Failed Error Message

Support or Contact

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