Installer (Kubernetes | OpenShift) 2.5.0-3.2.2

Note

For Sysdig installations on Kubernetes or OpenShift, version 2.5.0 and above.

The Sysdig Installer tool is a Docker image containing a collection of scripts that help automate the on-premises deployment of the Sysdig platform (Sysdig Monitor and/or Sysdig Secure), for environments using Kubernetes or OpenShift. Use the Installer to install or upgrade your Sysdig platform. It is recommended as a replacement for the earlier Kubernetes manual installation and upgrade procedures.

Installation Overview

To install, you will log in to quay.io, download a values.yaml file, provide a few basic parameters in it, and launch the Installer. In a normal installation, the rest is automatically configured and deployed.

You can perform a quick install if your environment has access to the internet, or a partial or full airgapped installation, as needed. Each is described below.

Note

See Frequently Used Installer Configurations to:

  • Customize or override settings

  • Use hostPath for static storage of Sysdig components

  • Use Kubernetes node labels and taints to run only Sysdig pods on selected nodes in a cluster

Prerequisites

The installer must be run from a machine with kubectl/oc configured with access to the target cluster where the Sysdig platform will be installed. Note that this cluster may be different than where the Sysdig agent will be deployed.

Requirements for Installation Machine with Internet Access

  • Network access to Kubernetes cluster

  • Docker

  • Bash

  • jq

  • Network access to quay.io (See Docker Login to quay.io, below.)

  • A domain name you are in control of.

Additional Requirements for Airgapped Environments

  • Edited values.yaml with airgap registry details updated

  • Network and authenticated access to the private registry

Access Requirements

  • Sysdig license key (Monitor and/or Secure)

  • Quay pull secret

Storage Requirements

You may use dynamic or static storage on a variety of platforms to store the Sysdig platform components (stateful sets). Different configuration parameters and values are used during the install, depending on which scenario you have.

Use Case 1: Default, undefined (AWS/GKE)

If you will use dynamic storage on AWS or GKE and haven’t configured any storage class there yet, then the Quick Install streamlines the process for you.

  • storageclassProvisioner: Enter aws or gke. The installer will create the appropriate storage class and then use it for all the Sysdig platform stateful sets.

  • storageclassName: Leave empty.

Use Case 2: Dynamic, predefined

It is also possible that you are using dynamic storage but have already created storage classes there. This dynamic storage could be AWS, GKE, or any other functioning dynamic storage you use.  In this case, you would enter: 

  • storageclassProvisioner: Leave empty; anything put here would be ignored.

  • storageclassName: Provide the name of the pre-configured storage class you want to use. The installer will use this storage class for all the Sysdig platform stateful sets.

Use Case 3: Static Storage

In cases where dynamic storage is not available, you can use static storage for the Sysdig stateful sets. In this case, you would use:

  • storageclassProvisioner: Enter hostpath, then define the nodes for the four main Sysdig components: ElasticSearch, Cassandra, MySQL, and Postgres.storageclassProvisioner

  • See Frequently Used Installer Configurations for details.

Docker Login to quay.io

  1. Retrieve the Quay username and password from Quay pull secret.

    For example

    AUTH=$(echo <REPLACE_WITH_quaypullsecret> | base64 --decode | jq -r '.auths."quay.io".auth'| base64 --decode)
QUAY_USERNAME=${AUTH%:*} 
QUAY_PASSWORD=${AUTH#*:}

  2. Log in to quay.io.Use the username and password retrieved above.

    docker login -u "$QUAY_USERNAME" -p "$QUAY_PASSWORD" quay.io

Quickstart Install

This install assumes the Kubernetes cluster has network access to pull images from quay.io.

  1. Copy the current version values.yaml to your working directory.

    wget https://raw.githubusercontent.com/draios/sysdigcloud-kubernetes/installer/installer/values.yaml

    Note

    If you will be editing for an OpenShift installation and want to review a sample, see openshift-with-hostpath values.yaml.

  2. Edit the following values:

    • size: Specifies the size of the cluster. Size defines CPU, Memory, Disk, and Replicas. Valid options are: small, medium and large

    • quaypullsecret: quay.io provided with your Sysdig purchase confirmation mail

    • storageClassProvisioner: Review Storage Requirements, above.

      If you have the default use case, enter aws or gke in the storageClassProvisioner field. Otherwise, refer to Use Case 2 or 3.

    • sysdig.license: Sysdig license key provided with your Sysdig purchase confirmation mail

    • sysdig.dnsname: The domain name the Sysdig APIs will be served on. Note that the master node may not be used as the DNS name when using hostNetwork mode.

    • sysdig.collector.dnsName: (OpenShift installs only) Domain name the Sysdig collector will be served on. When not configured it defaults to whatever is configured for sysdig.dnsName. Note that the master node may not be used as the DNS name when using hostNetwork mode.

    • deployment: (OpenShift installs only) Add deployment: openshift to the root of the values.yaml file.

    • sysdig.ingressNetworking: The networking construct used to expose the Sysdig API and collector.Options are:

      • hostnetwork: sets the hostnetworking in the ingress daemonset and opens host ports for api and collector. This does not create a Kubernetes service.

      • loadbalancer: creates a service of type loadbalancer and expects that your Kubernetes cluster can provision a load balancer with your cloud provider.

      • nodeport: creates a service of type nodeport.The node ports can be customized with:

        sysdig.ingressNetworkingInsecureApiNodePort

        sysdig.ingressNetworkingApiNodePort

        sysdig.ingressNetworkingCollectorNodePort

        When not configured, sysdig.ingressNetworking defaults to hostnetwork.

      Note

      If doing an airgapped install , you would also edit the following values:

    • airgapped_registry_name: The URL of the airgapped (internal) docker registry. This URL is used for installations where the Kubernetes cluster can not pull images directly from Quay

    • airgapped_repository_prefix: This defines custom repository prefix for airgapped_registry. Tags and pushes images as airgapped_registry_name/airgapped_repository_prefix/image_name:tag

    • airgapped_registry_password: The password for the configured airgapped_registry_username. Ignore this parameter if the registry does not require authentication.

    • airgapped_registry_username: The username for the configured airgapped_registry_name. Ignore this parameter if the registry does not require authentication.

  3. Run the installer. (This step differs in Airgapped Installation, below.)

    docker run \
  -e HOST_USER=$(id -u) \
  -e KUBECONFIG=/.kube/config \
  -v ~/.kube:/.kube:Z \
  -v $(pwd):/manifests:Z \
  quay.io/sysdig/installer:

  4. See Output (below) to finish.

Note

Save the values.yaml file in a secure location; it will be used for future upgrades.

There will also be a generated directory containing various Kubernetes configuration yaml files that were applied by the Installer against your cluster. It is not necessary to keep the generated directory, as the Installer can regenerate it consistently with the same values.yaml file.

Airgapped Installation Options

The installer can be used to install in airgapped environments, either with a multi-homed installation machine that has internet access, or in an environment with no internet access.

Updating Vulnerability Feed in Airgapped Environments

NOTE: Sysdig Secure users who install in an airgapped environment do not have internet access to the continuous checks of vulnerability databases that are used in image scanning. (See also: How Sysdig Image Scanning Works.)

As of installer version 3.2.0-9, airgapped environments can also receive periodic vulnerability database updates.

When you install with the "airgapped_" parameters enabled (see Full Airgap Install instructions), the installer will automatically push the latest vulnerability database to your environment. Follow the steps below to reinstall/refresh the vuln db, or use the script and chron job to schedule automated updates (daily, weekly, etc.).

To automatically update the vulnerability database, you can:

  1. Download the image file quay.io/sysdig/vuln-feed-database:latest from the Sysdig registry to the jump box server and save it locally.

  2. Move the file from the jump box server to the airgapped environment (if needed)

  3. Load the image file and push it to the airgapped image registry.

  4. Restart the pod sysdigcloud-feeds-db

  5. Restart the pod feeds-api

The following script (feeds_database_update.sh) performs the five steps:

#!/bin/bash
QUAY_USERNAME="<change_me>"
QUAY_PASSWORD="<change_me>"

# Download image
docker login quay.io/sysdig -u ${QUAY_USERNAME} -p ${QUAY_PASSWORD}
docker image pull quay.io/sysdig/vuln-feed-database:latest
# Save image
docker image save quay.io/sysdig/vuln-feed-database:latest -o vuln-feed-database.tar
# Optionally move image
mv vuln-feed-database.tar /var/shared-folder
# Load image remotely
ssh -t user@airgapped-host "docker image load -i /var/shared-folder/vuln-feed-database.tar"
# Push image remotely
ssh -t user@airgapped-host "docker tag vuln-feed-database:latest airgapped-registry/vuln-feed-database:latest"
ssh -t user@airgapped-host "docker image push airgapped-registry/vuln-feed-database:latest"
# Restart database pod
ssh -t user@airgapped-host "kubectl -n sysdigcloud scale deploy sysdigcloud-feeds-db --replicas=0"
ssh -t user@airgapped-host "kubectl -n sysdigcloud scale deploy sysdigcloud-feeds-db --replicas=1"
# Restart feeds-api pod
ssh -t user@airgapped-host "kubectl -n sysdigcloud scale deploy sysdigcloud-feeds-api --replicas=0"
ssh -t user@airgapped-host "kubectl -n sysdigcloud scale deploy sysdigcloud-feeds-api --replicas=1"

Schedule a chron job to run the script on a chosen schedule (e.g. every day):

0 8 * * * feeds-database-update.sh >/dev/null 2>&1

Airgapped with Multi-Homed Installation Machine

This assumes a private docker registry is used and the installation machine has network access to pull from quay.io and push images to the private registry.

The Prerequisites and workflow are the same as in the Quickstart Install (above) with the following exceptions:

  • In step 2, add the airgap registry information

  • In step 3, run the installer as follows:

    docker run \
  -e HOST_USER=$(id -u) \
  -e KUBECONFIG=/.kube/config \
  -e IMAGE_EXTRACT_PUSH=true \
  -v ~/.kube:/.kube:Z \
  -v $(pwd):/manifests:Z \
  -v /var/run/docker.sock:/var/run/docker.sock:Z \
  -v ~/.docker:/root/docker:Z \
  quay.io/sysdig/installer:

Full Airgap Install

This assumes a private docker registry is used and the installation machine does not have network access to pull from quay.io, but can push images to the private registry.

In this situation, a machine with network access (called the “jump machine”) will pull an image containing a self-extracting tarball which can be copied to the installation machine.

Requirements for jump machine

  • Network access to quay.io

  • Docker

  • jq

Requirements for installation machine

  • Network access to Kubernetes cluster

  • Docker

  • Bash

  • tar

  • Network and authenticated access to the private registry

  • Edited values.yaml with airgap registry details updated

  • Host Disk Space Requirements:/tmp > 4 GB; directory from which the installer is run >8GB; and /var/lib/docker > 4GB.

    NOTE: The environment variable TMPDIR can be used to override the /tmp directory.

Workflow

On the Jump Machine

  1. Follow the Docker Log In to quay.io steps.

  2. Pull the image containing the self-extracting tar:

    docker pull quay.io/sysdig/installer:-uber

  3. Extract the tarball:

    docker create --name uber_image quay.io/sysdig/installer:-uber
docker cp uber_image:/sysdig_installer.tar.gz .
docker rm uber_image

  4. Copy the tarball to the installation machine.

On the Installation Machine:

  1. Copy the current version values.yaml to your working directory.

    wget https://raw.githubusercontent.com/draios/sysdigcloud-kubernetes/installer/installer/values.yaml

  2. Edit the following values:

    • size: Specifies the size of the cluster. Size defines CPU, Memory, Disk, and Replicas. Valid options are: small, medium and large

    • quaypullsecret: quay.io provided with your Sysdig purchase confirmation mail

    • storageClassProvisioner: Review Storage Requirements, above.

      If you have the default use case, enter aws or gke in the storageClassProvisioner field. Otherwise, refer to Use Case 2 or 3.

    • sysdig.license: Sysdig license key provided with your Sysdig purchase confirmation mail

    • sysdig.dnsname: The domain name the Sysdig APIs will be served on. Note that the master node may not be used as the DNS name when using hostNetwork mode.

    • sysdig.collector.dnsName: (OpenShift installs only) Domain name the Sysdig collector will be served on. When not configured it defaults to whatever is configured for sysdig.dnsName. Note that the master node may not be used as the DNS name when using hostNetwork mode.

    • deployment: (OpenShift installs only) Add deployment: openshift to the root of the values.yaml file.

    • sysdig.ingressNetworking: The networking construct used to expose the Sysdig API and collector.Options are:

      • hostnetwork: sets the hostnetworking in the ingress daemonset and opens host ports for api and collector. This does not create a Kubernetes service.

      • loadbalancer: creates a service of type loadbalancer and expects that your Kubernetes cluster can provision a load balancer with your cloud provider.

      • nodeport: creates a service of type nodeport.The node ports can be customized with:

        sysdig.ingressNetworkingInsecureApiNodePort

        sysdig.ingressNetworkingApiNodePort

        sysdig.ingressNetworkingCollectorNodePort

    • airgapped_registry_name: The URL of the airgapped (internal) docker registry. This URL is used for installations where the Kubernetes cluster can not pull images directly from Quay

    • airgapped_repository_prefix: This defines custom repository prefix for airgapped_registry. Tags and pushes images as airgapped_registry_name/airgapped_repository_prefix/image_name:tag

    • airgapped_registry_password: The password for the configured airgapped_registry_username. Ignore this parameter if the registry does not require authentication.

    • airgapped_registry_username: The username for the configured airgapped_registry_name. Ignore this parameter if the registry does not require authentication.

  3. Copy the tarball file to the directory where you have your values.yaml file.

  4. Run the tar file:

    bash sysdig_installer.tar.gz

    NOTE: The above step extracts images, runs the installer, and pushes images to the remote repository in a single step. The extract/push images can be redundant for successive installer runs. Setting IMAGE_EXTRACT_PUSH=false runs only the installer:

    IMAGE_EXTRACT_PUSH=false bash sysdig_installer.tar.gz

  5. See Output (below) to finish.

Note

Save the values.yaml file in a secure location; it will be used for future upgrades.

There will also be a generated directory containing various Kubernetes configuration yaml files that were applied by the Installer against your cluster. It is not necessary to keep the generated directory, as the Installer can regenerate it consistently with the same values.yaml file.

Output

A successful installation should display output in the terminal such as:

All Pods Ready.....Continuing
Congratulations, your Sysdig installation was successful!
You can now login to the UI at "https://awesome-domain.com:443" with:

username: "configured-username@awesome-domain.com"
password: "awesome-password"

There will also be a generated directory containing various Kubernetes configuration yaml files which were applied by installer against your cluster. It is not necessary to keep the generated directory, as the installer can regenerate consistently with the same values.yaml file.

Additional Installer Resources