docker-compose not properly passing seccomp profile, Failed to set a seccomp profile on a worker thread Continuously In Logs. Open up a new terminal window and tail the output for Let's say you want to install Git. release versions, for example when comparing those from CRI-O and containerd. environment variable relates to the -p flag. visible in the seccomp data. For example, if you had .devcontainer/docker-compose.devcontainer.yml, you would just change the following line in devcontainer.json: However, a better approach is often to avoid making a copy of your Docker Compose file by extending it with another one. shophq official site. profile frontend and services without specified profiles. Compose needs special handling here to pass the file from the client side to the API. You would then reference this path as the. It fails with an error message stating an invalid seccomp filename, Describe the results you received: This means that no syscalls will be allowed from containers started with this profile. Asking for help, clarification, or responding to other answers. You can also enable Generally it is better to use this feature than to try to modify the seccomp profile, which is complicated and error prone. (this is the default). block. Compose builds the Lifecycle scripts "defaultAction": "SCMP_ACT_ERRNO". In general you should avoid using the --privileged flag as it does too many things. For example, consider this additional .devcontainer/docker-compose.extend.yml file: This same file can provide additional settings, such as port mappings, as needed. This profile has an empty syscall whitelist meaning all syscalls will be blocked. If you check the status of the Pod, you should see that it failed to start. In this step you will see how to force a new container to run without a seccomp profile. You can also reuse an existing Dockerfile: Now that you have a devcontainer.json and Dockerfile, let's see the general process for editing container configuration files. docker/cli#3616. node cluster with the seccomp profiles loaded. The default profiles aim to provide a strong set This is a beta feature and the corresponding SeccompDefault feature Hire Developers, Free Coding Resources for the Developer. To handle this situation, you can configure a location on your local filesystem to store configuration files that will be picked up automatically based on the repository. The new Compose V2, which supports the compose command as part of the Docker rev2023.3.1.43269. In the Settings editor, you can search for 'dev containers repo' to find the setting: Next, place your .devcontainer/devcontainer.json (and related files) in a sub folder that mirrors the remote location of the repository. You may want to install additional software in your dev container. onto a node. In this scenario, Docker doesnt actually have enough syscalls to start the container! If you order a special airline meal (e.g. The highest precedence action returned is taken. I've tried running with unconfined profile, cap_sys_admin, nothing worked. configuration. The above command sends the JSON file from the client to the daemon where it is compiled into a BPF program using a thin Go wrapper around libseccomp. Regardless, I'd suggest there's quite an audience for something more fine grained than, in particular, having to add the SYS_ADMIN capability. From the VS Code UI, you may select one of the following Templates as a starting point for Docker Compose: After you make your selection, VS Code will add the appropriate .devcontainer/devcontainer.json (or .devcontainer.json) file to the folder. surprising example is that if the x86-64 ABI is used to perform a Some workloads may require a lower amount of syscall restrictions than others. You can pull images from a container registry, which is a collection of repositories that store images. Work with a container deployed application defined by an image, Work with a service defined in an existing, unmodified. You should 15853f32f67c: Pull complete directory level, Compose combines the two files into a single configuration. How to get a Docker container's IP address from the host, Docker: Copying files from Docker container to host. in the kind configuration: If the cluster is ready, then running a pod: Should now have the default seccomp profile attached. is used on an x86-64 kernel: although the kernel will normally not 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. 17,697. Attempt to create the Pod in the cluster: The Pod creates, but there is an issue. A less Most container images are based on Debian or Ubuntu, where the apt or apt-get command is used to install new packages. You signed in with another tab or window. See install additional software for more information on installing software and the devcontainer.json reference for more information about the postCreateCommand property. This bug is still present. WebDocker compose does not work with a seccomp file AND replicas toghether. To learn more, see our tips on writing great answers. "mcr.microsoft.com/devcontainers/typescript-node:0-18", "mcr.microsoft.com/devcontainers/typescript-node", "ghcr.io/devcontainers/features/azure-cli:1", mcr.microsoft.com/devcontainers/javascript-node:0-18, apt-get update && export DEBIAN_FRONTEND=noninteractive \, "the-name-of-the-service-you-want-to-work-with-in-vscode", "/default/workspace/path/in/container/to/open". 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 . Web--security-opt seccomp=unconfined. This is problematic for situations where you are debugging and need to restart your app on a repeated basis. You can also see this information by running docker compose --help from the command line. # Runs the service on the same network as the database container, allows "forwardPorts" in devcontainer.json function. If i want to deploy a container through compose and enable a specific syscall, how would i achieve it? 089b9db7dc57: Pull complete others that use only generally available seccomp functionality. This may change in future versions (see https://github.com/docker/docker/issues/21984). Change into the labs/security/seccomp directory. Higher actions overrule lower actions. issue happens only occasionally): My analysis: ability to do anything meaningful. The -f flag is optional. but explicitly allowing a set of syscalls in the "action": "SCMP_ACT_ALLOW" Pulling db (postgres:latest) Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Set secomp to unconfined in docker-compose, The open-source game engine youve been waiting for: Godot (Ep. WebDocker Compose specific properties Tool-specific properties While most properties apply to any devcontainer.json supporting tool or service, a few are specific to certain tools. directory name. For this reason, the best way to test the effect of seccomp profiles is to add all capabilities and disable apparmor. However when i do this in a docker-compose file it seem to do nothing, maybe I'm not using compose right. A Dockerfile will also live in the .devcontainer folder. Very comprehensive presentation about seccomp that goes into more detail than this document. Thanks @justincormack I presume you mean until 19060 makes its way into 1.11? docker save tar docker load imagedata.tar layerdocker load tar running the Compose Rails sample, and worker: Most container runtimes provide a sane set of default syscalls that are allowed look beyond the 32 lowest bits of the arguments, the values of the 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. Since Kubernetes v1.25, kubelets no longer support the annotations, use of the Would the reflected sun's radiation melt ice in LEO? How do I fit an e-hub motor axle that is too big? Each container has its own routing tables and iptables. 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. There is also a postStartCommand that executes every time the container starts. Once you're connected, notice the green remote indicator on the left of the Status bar to show you are connected to your dev container: Through a devcontainer.json file, you can: If devcontainer.json's supported workflows do not meet your needs, you can also attach to an already running container instead. Instead, there are several commands that can be used to make editing your configuration easier. in /var/log/syslog. files, Compose combines them into a single configuration. What you really want is to give workloads postgres image for the db service from anywhere by using the -f flag as 17301519f133: Pull complete If you use docker 1.12, adding cap_sys_admin will automatically allow the required calls in the seccomp profile (mount, etc), which will work around this. Set secomp to unconfined in docker-compose. If the docker-compose.admin.yml also specifies this same service, any matching This allows you to install new command-line utilities and spin up databases or application services from inside the Linux container. The compose syntax is correct. How did StorageTek STC 4305 use backing HDDs? If I provide a full path to the profile, I get the same error (except '/' instead of '.'). Sending build context to Docker daemon 6.144kB Step 1/3 : FROM debian:buster ---> 7a4951775d15 Step 2/3 : RUN apt-get upda. follows: docker compose -f ~/sandbox/rails/docker-compose.yml pull db. Step 3 - Run a container with no seccomp profile, https://github.com/docker/engine-api/blob/c15549e10366236b069e50ef26562fb24f5911d4/types/seccomp.go, https://github.com/opencontainers/runtime-spec/blob/6be516e2237a6dd377408e455ac8b41faf48bdf6/specs-go/config.go#L502, https://github.com/docker/docker/issues/22252, https://github.com/opencontainers/runc/pull/789, https://github.com/docker/docker/issues/21984, http://man7.org/linux/man-pages/man2/seccomp.2.html, http://man7.org/conf/lpc2015/limiting_kernel_attack_surface_with_seccomp-LPC_2015-Kerrisk.pdf, https://cs.chromium.org/chromium/src/sandbox/linux/bpf_dsl/bpf_dsl.h?sq=package:chromium&dr=CSs, Invoke a ptracer to make a decision or set, A Linux-based Docker Host with seccomp enabled, Docker 1.10 or higher (preferably 1.12 or higher), To prove that we are not running with the default seccomp profile, try running a, SCMP_CMP_MASKED_EQ - masked equal: true if. docker-compose.yml; Permissions of relevant directories (using ls -ln) logs from affected containers, including TA and ES for this issue; Since we have several versions of the docker-compose and their associated logs, here is my recommendation: Use the docker-compose.yml that has the volume mount to the ES directory (the latest compose provided). You can achieve the same goal with --cap-add ALL --security-opt apparmor=unconfined --security-opt seccomp=unconfined. As seen in the previous example, the http-echo process requires quite a few You can adapt the steps to use a different tool if you prefer. When you use multiple Compose files, all paths in the files are relative to the 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. In this step you learned the format and syntax of Docker seccomp profiles. First, update the Dev > Containers: Repository Configuration Paths User setting with the local folder you want to use to store your repository container configuration files. This container can be used to run an application or to provide separate tools, libraries, or runtimes needed for working with a codebase. docker compose options, including the -f and -p flags. Note: The Dev Containers extension has a Dev Containers: Add Dev Container Configuration Files command that lets you pick a pre-defined container configuration from a list. How to copy files from host to Docker container? Documentation for the software you want to install will usually provide specific instructions, but you may not need to prefix commands with sudo if you are running as root in the container. relates to the -f flag, and COMPOSE_PROJECT_NAME Your use of Play With Docker is subject to the Docker Terms of Service which can be accessed. See the man page for all the details: http://man7.org/linux/man-pages/man2/seccomp.2.html. The sample below assumes your primary file is in the root of your project. This filtering should not be disabled unless it causes a problem with your container application usage. To avoid having the container shut down if the default container command fails or exits, you can modify your Docker Compose file for the service you have specified in devcontainer.json as follows: If you have not done so already, you can "bind" mount your local source code into the container using the volumes list in your Docker Compose file. The reader will also to your account. possible that the default profiles differ between container runtimes and their This allows for files 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. This limits the portability of BPF filters. Because this Pod is running in a local cluster, you should be able to see those Out of system resources. For more information, see the Evolution of Compose. If you need access to devices use -ice. defined by the container runtime, instead of using the Unconfined (seccomp disabled) mode. 6fba0a36935c: Pull complete When running in Docker 1.10, I need to provide my own seccomp profile to allow mounting. This is an ideal situation from a security perspective, but Fortunately, Dev Containers supports Docker Compose managed multi-container configurations. Add multiple rules to achieve the effect of an OR. successfully. line flag, or enable it through the kubelet configuration to get started. WebThe docker-default profile is the default for running containers. . When you supply multiple The build process can refer to any of the files in the context. It is moderately protective while providing wide application compatibility. You also may not be mapping the local filesystem into the container or exposing ports to other resources like databases you want to access. You can adopt these defaults for your workload by setting the seccomp If you'd prefer to have a complete dev container immediately rather than building up the devcontainer.json and Dockerfile step-by-step, you can skip ahead to Automate dev container creation. In chapter 5, the book covers advanced Docker features such as Docker Compose and Swarm for orchestration, and using Docker in the cloud. 2017/09/04 15:58:33 server.go:73: Using API v1 2017/09/04 15:58:33 The Visual Studio Code Dev Containers extension lets you use a Docker container as a full-featured development environment. This gives you the confidence the behavior you see in the following steps is solely due to seccomp changes. How to copy Docker images from one host to another without using a repository. Heres an example of how we can list all system calls made by ls: The output above shows the syscalls that will need to be enabled for a container running the ls program to work, in addition to the syscalls required to start a container. Docker seccomp profiles operate using a whitelist approach that specifies allowed syscalls. This is because it allows bypassing of seccomp. # Required for ptrace-based debuggers like C++, Go, and Rust. So what *is* the Latin word for chocolate? Once VS Code is connected to the container, you can open a VS Code terminal and execute any command against the OS inside the container. Also, you can set some of these variables in an environment file. WebDocker-from-Docker Compose - Includes the Docker CLI and illustrates how you can use it to access your local Docker install from inside a dev container by volume mounting the You signed in with another tab or window. seccomp is a sandboxing facility in the Linux kernel that acts like a firewall for system calls (syscalls). See also Using profiles with Compose and the Sending build context to Docker daemon 6.144kB Step 1/3 : FROM debian:buster ---> 7a4951775d15 Step 2/3 : RUN apt-get upda. docker docker-compose seccomp. only the privileges they need. # mounts are relative to the first file in the list, which is a level up. The contents of these profiles will be explored later on, but for now go ahead See Nodes within the Also, can we ever expect real compose support rather than a workaround? Rather than creating a .devcontainer by hand, selecting the Dev Containers: Add Dev Container Configuration Files command from the Command Palette (F1) will add the needed files to your project as a starting point, which you can further customize for your needs. container belonging to that control plane container: You can see that the process is running, but what syscalls did it actually make? Use a -f with - (dash) as the filename to read the configuration from 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. I'm trying to run an s3fs-fuse docker image, which requires the ability to mount. The target path inside the container, # should match what your application expects. Translate a Docker Compose File to Kubernetes Resources What's Kompose? kind documentation about configuration for more details on this. Your Docker Host will need the strace package installed. You can set environment variables for various Version 1.76 is now available! To use it, reference your original docker-compose.yml file in addition to .devcontainer/docker-compose.extend.yml in a specific order: VS Code will then automatically use both files when starting up any containers. into the cluster. You can supply multiple -f configuration files. Now the profile is setting "defaultAction": "SCMP_ACT_ERRNO", recommends that you enable this feature gate on a subset of your nodes and then To set the Seccomp profile for a Container, include the seccompProfile field in the securityContext section of your Pod or 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. Is that actually documented anywhere please @justincormack? For example, we add the streetsidesoftware.code-spell-checker extension above, and the container will also include "dbaeumer.vscode-eslint" as that's part of mcr.microsoft.com/devcontainers/typescript-node. New Docker jobs added daily. vegan) just for fun, does this inconvenience the caterers and staff? docker network security and routing - By default, docker creates a virtual ethernet card for each container. add to their predecessors. You can solve these and other issues like them by extending your entire Docker Compose configuration with multiple docker-compose.yml files that override or supplement your primary one. It will install the Dev Containers extension if necessary, clone the repo into a container volume, and start up the dev container. You may also add a badge or link in your repository so that users can easily open your project in Dev Containers. Need to be able to allow the mount syscall via a custom seccomp profile for FUSE usage. The only way to use multiple seccomp filters, as of Docker 1.12, is to load additional filters within your program at runtime. seccomp.security.alpha.kubernetes.io/pod (for the whole pod) and The postCreateCommand actions are run once the container is created, so you can also use the property to run commands like npm install or to execute a shell script in your source tree (if you have mounted it). Since rebuilding a container will "reset" the container to its starting contents (with the exception of your local source code), VS Code does not automatically rebuild if you edit a container configuration file (devcontainer.json, Dockerfile, and docker-compose.yml). You can begin to understand the syscalls required by the http-echo process by 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 It also applies the seccomp profile described by
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