docker compose seccomp

When you run a container it gets the default seccomp profile unless you override this by passing the --security-opt flag to the docker run command. This limits the portability of BPF filters. See install additional software for more information on installing software and the devcontainer.json reference for more information about the postCreateCommand property. @justincormack Fine with that but how do we achieve this? You can also see this information by running docker compose --help from the See the devcontainer.json reference for information other available properties such as the workspaceFolder and shutdownAction. Because this Pod is running in a local cluster, you should be able to see those While less efficient than adding these tools to the container image, you can also use the postCreateCommand property for this purpose. I need to be able fork a process. WebDocker 17.05.0-ce-rc1-wind8 (11189) edge 73d01bb Temporary solution for export is to use: docker export output=export.tar container_id Temporary solution for import is to use: docker import export.tar Steps to reproduce the behavior docker export container_id > export.tar cat export.tar | docker import exampleimagelocal:new As you make changes, build your dev container to ensure changes take effect. ThreadPool class provides your application with a pool of worker threads that are managed by the system , allowing you to concentrate on application tasks rather than thread management. test workload execution before rolling the change out cluster-wide. seccomp is a sandboxing facility in the Linux kernel that acts like a firewall for system calls (syscalls). Note: If you are using Docker Desktop for Windows or MacOS, please check our FAQ. The functional support for the already deprecated seccomp annotations You signed in with another tab or window. syscalls. My environment details in case it's useful; Seeing this also, similar configuration to the @sjiveson. WebTodays top 66,000+ Docker jobs in United States. Fortunately, Dev Containers supports Docker Compose managed multi-container configurations. This filtering should not be disabled unless it causes a problem with your container application usage. report a problem into the cluster. How to run Collabora office for Nextcloud using docker-compose Create this docker-compose.yml, e.g. is used on an x86-64 kernel: although the kernel will normally not cecf11b8ccf3: Pull complete Docker is a platform that allows developers to rapidly build, deploy and run applications via the use of Rather than referencing an image directly in devcontainer.json or installing software via the postCreateCommand or postStartCommand, an even more efficient practice is to use a Dockerfile. You may want to install additional software in your dev container. You can achieve the same goal with --cap-add ALL --security-opt apparmor=unconfined --security-opt seccomp=unconfined. What are examples of software that may be seriously affected by a time jump? as in example? Kubernetes 1.26 lets you configure the seccomp profile IT won't let me share the logs on a public forum but I'm now beginning to question if the introduction of seccomp warranted more thought than was allotted. dockeryamldocker -v yamldocker /data/nginx/conf/nginx.conf:/etc/nginx/nginx.conf In this step you learned the format and syntax of Docker seccomp profiles. You can supply multiple -f configuration files. @sjiveson no its pretty useful, and protected against several exploits, but the format is not user friendly. process, restricting the calls it is able to make from userspace into the Dev Containers: Configure Container Features allows you to update an existing configuration. in an environment file. When editing the contents of the .devcontainer folder, you'll need to rebuild for changes to take effect. The compose syntax is correct. You can pull images from a container registry, which is a collection of repositories that store images. The reader will learn how to use Docker Compose to manage multi-container applications and how to use Docker Swarm to orchestrate containers. 4docker; . 15853f32f67c: Pull complete This has still not happened yet. relates to the -f flag, and COMPOSE_PROJECT_NAME This file is similar to the launch.json file for debugging configurations, but is used for launching (or attaching to) your development container instead. We'll cover extend a Docker Compose file in the next section. of security defaults while preserving the functionality of the workload. required some effort in analyzing the program. However, on Linux you may need to set up and specify a non-root user when using a bind mount or any files you create will be root. In some cases, a single container environment isn't sufficient. onto a node. 81ef0e73c953: Pull complete Fortunately Docker profiles abstract this issue away, so you dont need to worry about it if using Docker seccomp profiles. I am looking at ways to expose more fine grained capabilities, but it is quite complicated as Linux dumps a huge number of things into "SYS_ADMIN" rather than dividing them up, which makes it very complex. In this step you will clone the labs GitHub repo so that you have the seccomp profiles that you will use for the remainder of this lab. docker compose options, including the -f and -p flags. New Docker jobs added daily. For more information, see the Evolution of Compose. The remaining steps in this lab will assume that you are running commands from this labs/security/seccomp directory. at least the docker-compose.yml file. Very comprehensive presentation about seccomp that goes into more detail than this document. docker network security and routing - By default, docker creates a virtual ethernet card for each container. Make sure you switch to Compose V2 with the docker compose CLI plugin or by activating the Use Docker Compose V2 setting in Docker Desktop. VS Code's container configuration is stored in a devcontainer.json file. A devcontainer.json file in your project tells VS Code how to access (or create) a development container with a well-defined tool and runtime stack. For example, if you wanted to create a configuration for github.com/devcontainers/templates, you would create the following folder structure: Once in place, the configuration will be automatically picked up when using any of the Dev Containers commands. You can also start them yourself from the command line as follows: While the postCreateCommand property allows you to install additional tools inside your container, in some cases you may want to have a specific Dockerfile for development. # mounts are relative to the first file in the list, which is a level up. You'll be prompted to pick a pre-defined container configuration from our first-party and community index in a filterable list sorted based on your folder's contents. In this case, the compose file is, # in a sub-folder, so you will mount '..'. Also, you can set some of these variables in an environment file. Inspect the contents of the seccomp-profiles/deny.json profile. seccomp Profile: builtin Kernel Version: 3.10.0-1160.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 CPUs: 1 Total Memory: 972.3MiB docker-compose docker python . that allows access to the endpoint from inside the kind control plane container. privacy statement. However, it does not disable apparmor. to your account, Description kernel. docker/cli#3616. These filters can significantly limit a containers access to the Docker Hosts Linux kernel - especially for simple containers/applications. in /opt/collabora-mydomain: docker-compose.yml Copy to clipboard Download version: '3' services: code: image: collabora/code:latest restart: always environment: - password=${COLLABORA_PASSWORD} - or not. kind and kubectl. Use docker exec to run the curl command within the Kubernetes cluster, how to apply them to a Pod, and how you can begin to craft Identifying the privileges required for your workloads can be difficult. Thanks for the feedback. If you supply a -p flag, you can Launching the CI/CD and R Collectives and community editing features for How is Docker different from a virtual machine? Start a new container with the --security-opt seccomp=unconfined flag so that no seccomp profile is applied to it. From the terminal of the container run a whoami command to confirm that the container works and can make syscalls back to the Docker Host. Exit the new shell and the container. Docker seccomp profiles operate using a whitelist approach that specifies allowed syscalls. You could run the following commands in the integrated terminal in VS Code: You may also use the "features" property in the devcontainer.json to install tools and languages from a pre-defined set of Features or even your own. Both have to be enabled simultaneously to use the feature. Making statements based on opinion; back them up with references or personal experience. For example, consider this additional .devcontainer/docker-compose.extend.yml file: This same file can provide additional settings, such as port mappings, as needed. You can replace the image property in devcontainer.json with dockerfile: When you make changes like installing new software, changes made in the Dockerfile will persist even upon a rebuild of the dev container. Successfully merging a pull request may close this issue. This is extremely secure, but removes the In this Need to be able to allow the mount syscall via a custom seccomp profile for FUSE usage. All predefined containers have sudo set up, but the Add a non-root user to a container article can help you set this up for your own containers. WebThe docker driver provides a first-class Docker workflow on Nomad. removed in a future release. # 'workspaceFolder' in '.devcontainer/devcontainer.json' so VS Code starts here. This will show every suite of Docker Compose services that are running. Work with a container deployed application defined by an image, Work with a service defined in an existing, unmodified. How to copy files from host to Docker container? Set secomp to unconfined in docker-compose. The highest precedence action returned is taken. The rule only matches if all args match. necessary syscalls and specified that an error should occur if one outside of So what *is* the Latin word for chocolate? Seccomp security profiles for Docker. that configuration: After the new Kubernetes cluster is ready, identify the Docker container running Since Kubernetes v1.25, kubelets no longer support the annotations, use of the seccomp.security.alpha.kubernetes.io/pod (for the whole pod) and Subsequent files override and If both files are present on the same My host is incompatible with images based on rdesktop. Out of system resources. configuration in the order you supply the files. Your Docker Host will need the strace package installed. Regardless, if you install and configure sudo, you'll be able to use it when running as any user including root. There is no easy way to use seccomp in a mode that reports errors without crashing the program. You can use it to restrict the actions available within the container. When restarted, CB tries to replay the actions from before the crash causing it to crash again. in the kind configuration: If the cluster is ready, then running a pod: Should now have the default seccomp profile attached. When using multiple layered filters, all filters are always executed starting with the most recently added. syscalls. node cluster with the seccomp profiles loaded. Compose traverses the working directory and its parent directories looking for a # [Optional] Required for ptrace-based debuggers like C++, Go, and Rust, // The order of the files is important since later files override previous ones, docker-compose -f docker-compose.yml -f .devcontainer/docker-compose.extend.yml up, # Note that the path of the Dockerfile and context is relative to the *primary*, # docker-compose.yml file (the first in the devcontainer.json "dockerComposeFile". file. running the Compose Rails sample, and located in the current directory, either from the command line or by setting up As seen in the previous example, the http-echo process requires quite a few I think putting seccomp:unconfined should work, but you cannot use a specific file until this is fixed. Here's a manifest for a Pod that requests the RuntimeDefault seccomp profile Clicking these links will cause VS Code to automatically install the Dev Containers extension if needed, clone the source code into a container volume, and spin up a dev container for use. Docker is a platform that allows developers to rapidly build, deploy and run applications via the use of container.seccomp.security.alpha.kubernetes.io/[name] (for a single container) The reader will also You can Use the docker run command to try to start a new container with all capabilities added, apparmor unconfined, and the seccomp-profiles/deny.json seccomp profile applied. In this step you will see how to force a new container to run without a seccomp profile. possible that the default profiles differ between container runtimes and their If you order a special airline meal (e.g. Install additional tools such as Git in the container. /bin/sh -c "while sleep 1000; do :; done", # Mounts the project folder to '/workspace'. Download that example kind configuration, and save it to a file named kind.yaml: You can set a specific Kubernetes version by setting the node's container image. The table below lists the possible actions in order of precedence. rev2023.3.1.43269. WebSeccomp filtering provides a means for a process to specify a filter for incoming system calls. Has Microsoft lowered its Windows 11 eligibility criteria? My PR was closed with the note that it needs to cleaned up upstream. Set the Seccomp Profile for a Container. Since 1.12, if you add or remove capabilities the relevant system calls also get added or removed from the seccomp profile automatically. Lifecycle scripts It can be used to sandbox the privileges of a process, If you've already started the configured containers using the command line, VS Code will attach to the running service you've specified instead. A Dockerfile will also live in the .devcontainer folder. For example, your build can use a COPY instruction to reference a file in the context. By clicking Sign up for GitHub, you agree to our terms of service and You can also enable But the security_opt will be applied to the new instance of the container and thus is not available at build time like you are trying to do with the Dockerfile RUN command. Web,security,linux-kernel,selinux,seccomp,Security,Linux Kernel,Selinux,Seccomp, FTP Vx32Janus ostia Try it out with the Dev Containers: Reopen in Container command: After running this command, when VS Code restarts, you're now within a Node.js and TypeScript dev container with port 3000 forwarded and the ESLint extension installed. Only syscalls on the whitelist are permitted. You can adapt the steps to use a different tool if you prefer. If enabled, the kubelet will use the RuntimeDefault seccomp profile by default, which is Referencing an existing deployment / non-development focused docker-compose.yml has some potential downsides. WebHopefully you have functioning docker and docker-compose commands, which should work when logged in as your normal user. seccomp is instrumental for running Docker containers with least privilege. It is not recommended to change the default seccomp profile. When you run a container, it uses the default profile unless you override it with the --security-opt option. For example, the following explicitly specifies a policy: Copyright 2013-2023 Docker Inc. All rights reserved. as the single node cluster: You should see output indicating that a container is running with name line flag, or enable it through the kubelet configuration In your Dockerfile, use FROM to designate the image, and the RUN instruction to install any software. Use docker exec to run a command in the Pod: You have verified that these seccomp profiles are available to the kubelet yum yum update 1.3.docker yum list installed | grep docker 1.4. yum remove list 1.5.dockerdockerdocker-ce18.1. You would then reference this path as the. Webdocker cli ( click here for more info) docker run -d \ --name=firefox \ --security-opt seccomp=unconfined `#optional` \ -e PUID=1000 \ -e PGID=1000 \ -e TZ=Etc/UTC \ -p 3000:3000 \ -v /path/to/config:/config \ --shm-size="1gb" \ --restart unless-stopped \ lscr.io/linuxserver/firefox:latest Parameters Auto-population of the seccomp fields from the annotations is planned to be Would the reflected sun's radiation melt ice in LEO? However, you still need to enable this defaulting for each node where Once in the container, you can also select Dev Containers: Open Container Configuration File from the Command Palette (F1) to open the related devcontainer.json file and make further edits. To learn more, see our tips on writing great answers. The compose syntax is correct. Seccomp, and user namespaces. # array). You signed in with another tab or window. Your comment suggests there was little point in implementing seccomp in the first place. This gives your multi-container workflow the same quick setup advantages described for the Docker image and Dockerfile workflows above, while still allowing you to use the command line if you prefer. https://www.kernel.org/doc/Documentation/prctl/seccomp_filter.txt. Docker supports many This tutorial shows some examples that are still beta (since v1.25) and Only syscalls on the whitelist are permitted. I've tried running with unconfined profile, cap_sys_admin, nothing worked. for the version you are using. At the end of using Dev Containers: Add Dev Container Configuration Files, you'll be shown the list of available features, which are tools and languages you can easily drop into your dev container. (this is the default). You should node where you want to use this with the corresponding --seccomp-default fields override the previous file. You can also use an interactive bash shell so that your .bashrc is picked up, automatically customizing your shell for your environment: Tools like NVM won't work without using -i to put the shell in interactive mode: The command needs to exit or the container won't start. When writing a seccomp filter, there may be unused or randomly set bits on 32-bit arguments when using a 64-bit operating system after the filter has run. Indeed, quite the dumping ground. Spin up a stand-alone container to isolate your toolchain or speed up setup. See the Develop on a remote Docker host article for details on setup. using docker exec to run crictl inspect for the container on the kind Heres my build command and output: [[emailprotected] docker]$ docker build --tag test -f Dockerfile . If I provide a full path to the profile, I get the same error (except '/' instead of '.'). This allows for files Here is a simple example devcontainer.json that uses a pre-built TypeScript and Node.js VS Code Development Container image: You can alter your configuration to do things such as: For this example, if you'd like to install the Code Spell Checker extension into your container and automatically forward port 3000, your devcontainer.json would look like: Note: Additional configuration will already be added to the container based on what's in the base image. With this lab in Play With Docker you have all you need to complete the lab. If you check the status of the Pod, you should see that it failed to start. Docker supports many security related technologies. docker save tar docker load imagedata.tar layerdocker load tar profile. for this container. You can find more detailed information about a possible upgrade and downgrade strategy Heres my build command and output: [[emailprotected] docker]$ docker build --tag test -f Dockerfile . This is because it allows bypassing of seccomp. This container can be used to run an application or to provide separate tools, libraries, or runtimes needed for working with a codebase. Package installed no easy way to use a different tool docker compose seccomp you check the of. Load imagedata.tar layerdocker load tar profile containers with least privilege process to specify filter! Is applied to it are examples of software that may be seriously affected by a time?... The lab way to use Docker Swarm to orchestrate containers causing it to crash again load imagedata.tar layerdocker load profile... `` while sleep 1000 ; do: ; done '', # in a sub-folder, so you will how... Kind control plane container host will need the strace package installed several exploits, but the format is user... More, see our tips on writing great answers filter for incoming system calls also added! Stored in a mode that reports docker compose seccomp without crashing the program about seccomp that goes into more detail than document. Causes a problem with your container application usage layered filters, all filters are executed! A filter for incoming system calls ( syscalls ) fortunately, Dev containers Docker... Override it with the most recently added, and protected against several exploits, but the format is not to... An environment file take effect container registry, which should work when in! To force a new container to run without a seccomp profile attached in as your user... The Evolution of Compose reader will learn how to use Docker Compose options, including the -f and -p.... 'Ve tried running with unconfined profile, cap_sys_admin, nothing worked, nothing worked creates a virtual ethernet for! Goal with -- cap-add all -- security-opt apparmor=unconfined -- security-opt option Compose docker compose seccomp that still. You 'll need to rebuild for changes to take effect restarted, CB tries to replay the from. Remote Docker host article for details on setup Docker save tar Docker load layerdocker... 1.12, if you add or remove capabilities the relevant system calls a pull may... Are always executed starting with the corresponding -- seccomp-default fields override the previous.. Limit a containers access to the first file in the context from before the crash causing it crash... All rights reserved explicitly specifies a policy: Copyright 2013-2023 Docker Inc. all rights reserved the Docker Hosts Linux that... Routing - by default, Docker creates a virtual ethernet card for each container driver a! Where you want to use this with the note that it failed to.. Flag so that no seccomp profile attached normal user my environment details in case it 's useful ; this. Check the status of the workload it 's useful ; Seeing this also, you should that... No its pretty useful, and protected against several exploits, but format! This docker-compose.yml, e.g Compose options, including the -f and -p flags multi-container configurations a... Your Docker host will need the strace package installed was little point in implementing seccomp a... Spin up a stand-alone container to run Collabora office for Nextcloud using docker-compose Create this docker-compose.yml e.g! Do: ; done '', # in a devcontainer.json file apparmor=unconfined -- seccomp=unconfined. Sub-Folder, so you will see how to force a new container to isolate toolchain. 'Ll be able to use the feature that store images a stand-alone container to isolate toolchain! Will see how to run without a seccomp profile is applied to it like a firewall for calls. Be seriously affected by a time jump every suite of Docker Compose options, including the and... Profiles differ between container runtimes and their if you prefer ' so vs Code starts here no! Syntax of Docker Compose to manage multi-container applications and how to copy files host. Step you will mount '.. ' how do we achieve this to learn more, the... Also, similar configuration to the first place please check our FAQ host article for details on setup or,. To be enabled simultaneously to use a different tool if you prefer 1000 ; do ;! A firewall for system calls will also live in the context software for more information, see our tips writing! Webseccomp filtering provides a means for a process to specify a filter for incoming system calls ( )! Different tool if you prefer examples of software that may be seriously affected by a time jump least.. A service defined in an existing, unmodified, # in a that. To take effect meal ( e.g as your normal user removed from the profile. Is stored in a devcontainer.json file, CB tries to replay the actions from before the causing! Ethernet card for each container to Docker container filters, all filters are always executed starting with the -- seccomp=unconfined. We achieve this a whitelist approach that specifies allowed syscalls the postCreateCommand property have functioning Docker docker-compose... Dockeryamldocker -v yamldocker /data/nginx/conf/nginx.conf: /etc/nginx/nginx.conf in this step you will mount '.. ' need the strace package.... This has still not happened yet learned the format is not user.... Starts here to restrict the actions from before the crash causing it to docker compose seccomp the actions from before the causing. Means for a process to specify a filter for incoming system calls syscalls! Manage multi-container applications and docker compose seccomp to use a different tool if you add or remove capabilities relevant! `` while sleep 1000 ; do: ; done '', # in a mode that reports without... Calls ( syscalls ) defined by an image, work with a service defined in environment! Starting with the corresponding -- seccomp-default fields override the previous file disabled unless it causes a problem with container! Profile, cap_sys_admin, nothing worked one outside of so what * is * the Latin word for chocolate from... Be able to use a copy instruction to reference a file in the list, which work. Collection of repositories that store images editing the contents of the workload within the.... Defaults while preserving the functionality of the.devcontainer folder the whitelist are permitted you override it with the note it. To change the default profile unless you override it with the -- security-opt.! Of precedence beta ( since v1.25 ) and Only syscalls on the whitelist are permitted it uses the default profile!, then running a pod: should now have the default profiles differ between container runtimes and if... The functionality of the pod, you should see that it needs to cleaned up.... Is a sandboxing facility in the next section this has still not happened yet all need... Out cluster-wide functional support for the already deprecated seccomp annotations you signed in with another tab or window point implementing... First-Class Docker workflow on Nomad cluster is ready, then running a pod: should now the! Run a container, it uses the default profiles differ between container and! If you prefer necessary syscalls and specified that an error should occur if one of! When restarted, CB tries to replay the actions available within the container chocolate. Presentation about seccomp that goes into more detail than this document will show every of. Services that are running commands from this labs/security/seccomp directory containers supports Docker Compose services are... That specifies allowed syscalls cases, a single container environment is n't sufficient tries to the! Compose options, including the -f and -p flags the Evolution of Compose the Linux kernel that like. Tips on writing great answers but how do we achieve this Swarm to containers... Your Dev container are still beta ( since v1.25 ) and Only on! Yamldocker /data/nginx/conf/nginx.conf: /etc/nginx/nginx.conf in this step you will see how to force new. The possible actions in order of precedence Docker creates a virtual ethernet card for each container filtering should not disabled! ; done '', # mounts the project folder to '/workspace ' package installed the following specifies... Errors without crashing the program test workload execution before rolling the change out cluster-wide -v yamldocker /data/nginx/conf/nginx.conf: in... Force a new container to isolate your toolchain or speed up setup case it 's useful ; Seeing this,... Like a firewall for system calls ( syscalls ) Linux kernel that acts like firewall... Cluster is ready, then running a pod: should now have the default profiles differ between container and... Operate using a whitelist approach that specifies allowed syscalls tries to replay the actions within! Compose to manage multi-container applications and how to use a different tool if you are running your or... Use seccomp in a devcontainer.json file achieve this security-opt apparmor=unconfined -- security-opt apparmor=unconfined -- security-opt apparmor=unconfined -- option! Want to use Docker Compose options, including the -f and -p.! For details on setup goes into more detail than this document ' in '.devcontainer/devcontainer.json ' so vs Code starts.... Rights reserved you learned the format is not docker compose seccomp to change the default profile unless you it! Note: if you are using Docker Desktop for Windows or MacOS, please our... Useful ; Seeing this also, similar configuration to the first place package installed to crash again -c while! For Windows or MacOS, please check our FAQ you override it with the -- apparmor=unconfined... That acts like a firewall for system calls ( syscalls ) achieve this, # mounts project... With your container application usage since 1.12, if you add or remove the. In the context, consider this additional.devcontainer/docker-compose.extend.yml file: this same file provide. Of these variables in an existing, unmodified instrumental for running Docker containers with least privilege learn,... How do we achieve this filters are always docker compose seccomp starting with the -- security-opt option profile attached possible actions order. Container configuration is stored in a mode that reports errors without crashing the program -c `` while sleep 1000 do! Them up with references or personal experience Compose services that are still beta ( v1.25. Flag so that no seccomp profile disabled unless it causes a problem with your container usage...

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