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| -rw-r--r-- | claim/README.md | 71 |
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diff --git a/claim/README.md b/claim/README.md index 30f5a85f1..d694990d3 100644 --- a/claim/README.md +++ b/claim/README.md @@ -116,6 +116,67 @@ For the connection process to work, the contents of `/var/lib/netdata` _must_ be restarts using a persistent volume. See our [recommended `docker run` and Docker Compose examples](/packaging/docker/README.md#create-a-new-netdata-agent-container) for details. +#### Known issues on older hosts with seccomp enabled + +The nodes running on the following hosts **cannot be claimed**: + +- `libseccomp` version less than v2.3.3. +- Docker version less than v18.04.0-ce. +- The kernel is configured with CONFIG_SECCOMP enabled. + +To check if your kernel supports `seccomp`: + +```cmd +# grep CONFIG_SECCOMP= /boot/config-$(uname -r) 2>/dev/null || zgrep CONFIG_SECCOMP /proc/config.gz 2>/dev/null +CONFIG_SECCOMP=y +``` + +To resolve the issue, do one of the following actions: + +- Update to a newer version of Docker and `libseccomp` (recommended). +- Create a custom profile and pass it for the container. +- Run [without the default seccomp profile](https://docs.docker.com/engine/security/seccomp/#run-without-the-default-seccomp-profile) (unsafe, not recommended). + +<details> +<summary>See how to create a custom profile</summary> + +1. Download the moby default seccomp profile and change `defaultAction` to `SCMP_ACT_TRACE` on line 2. + + ```cmd + sudo wget https://raw.githubusercontent.com/moby/moby/master/profiles/seccomp/default.json -O /etc/docker/seccomp.json + sudo sed -i '2s/SCMP_ACT_ERRNO/SCMP_ACT_TRACE/' /etc/docker/seccomp.json + ``` + +2. Specify the new policy for the container explicitly. + + - When using `docker run`: + + ```cmd + docker run -d --name=netdata \ + --security-opt=seccomp=/etc/docker/seccomp.json \ + ... + ``` + + - When using `docker-compose`: + + > :warning: The security_opt option is ignored when deploying a stack in swarm mode. + + ```yaml + version: '3' + services: + netdata: + security_opt: + - seccomp:/etc/docker/seccomp.json + ... + ``` + + - When using `docker stack deploy`: + + Change the default profile globally by adding `--seccomp-profile=/etc/docker/seccomp.json` to the options passed to + dockerd on startup. + +</details> + #### Using environment variables The Netdata Docker container looks for the following environment variables on startup: @@ -308,7 +369,7 @@ If you run the kickstart script and get the following error `Existing install ap If you are using an unsupported package, such as a third-party `.deb`/`.rpm` package provided by your distribution, please remove that package and reinstall using our [recommended kickstart -script](/docs/get-started.mdx#install-on-linux-with-one-line-installer-recommended). +script](/docs/get-started.mdx#install-on-linux-with-one-line-installer). #### kickstart: Failed to write new machine GUID @@ -328,7 +389,7 @@ Netdata to `/opt/netdata`, use `/opt/netdata/bin/netdata-claim.sh` to run the cl If you are using an unsupported package, such as a third-party `.deb`/`.rpm` package provided by your distribution, please remove that package and reinstall using our [recommended kickstart -script](/docs/get-started.mdx#install-on-linux-with-one-line-installer-recommended). +script](/docs/get-started.mdx#install-on-linux-with-one-line-installer). #### Connecting on older distributions (Ubuntu 14.04, Debian 8, CentOS 6) @@ -460,8 +521,8 @@ using the [ACLK](/aclk/README.md). The best way to install Netdata and connect your nodes to Netdata Cloud is with our automatic one-line installation script, [kickstart](/packaging/installer/README.md#automatic-one-line-installation-script). This script will install the Netdata Agent, in case it isn't already installed, and connect your node to Netdata Cloud. -This works with: -* all Linux distributions, see [Netdata distribution support matrix](https://learn.netdata.cloud/docs/agent/packaging/distributions) +This works with: +* most Linux distributions, see [Netdata's platform support policy](/packaging/PLATFORM_SUPPORT.md) * macOS For details on how to run this script please check [How to connect a node](#how-to-connect-a-node) and choose your environment. @@ -548,4 +609,4 @@ Rooms you added that node to. The user can also put the Cloud endpoint's full certificate chain in `cloud.d/cloud_fullchain.pem` so that the Agent can trust the endpoint if necessary. -[](<>) + |