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Merge pull request #5796 from inspec/vasundhara/virtualization_resource

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CFINSPEC-1 Adds the ability to detect the Kubernetes container and Podman container.
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Clinton Wolfe 2022-03-19 16:26:47 -04:00 committed by GitHub
commit 55fe4b21f4
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1 changed files with 9 additions and 3 deletions
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12
lib/inspec/resources/virtualization.rb
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@ -190,7 +190,7 @@ module Inspec::Resources
true
end
# Detect LXC/Docker
# Detect LXC/Docker/k8s/podman
#
# /proc/self/cgroup will look like this inside a docker container:
# <index #>:<subsystem>:/lxc/<hexadecimal container id>
@ -208,7 +208,7 @@ module Inspec::Resources
#
# Full notes, https://tickets.opscode.com/browse/OHAI-551
# Kernel docs, https://www.kernel.org/doc/Documentation/cgroups
def detect_lxc_docker
def detect_container
return false unless inspec.file("/proc/self/cgroup").exist?
cgroup_content = inspec.file("/proc/self/cgroup").content
@ -216,6 +216,12 @@ module Inspec::Resources
cgroup_content =~ %r{^\d+:[^:]+:/[^/]+/(lxc|docker)-.+$} # rubocop:disable Layout/MultilineOperationIndentation
@virtualization_data[:system] = $1 # rubocop:disable Style/PerlBackrefs
@virtualization_data[:role] = "guest"
elsif cgroup_content =~ %r{^\d+:[^:]+:/(kubepods)/.+$}
@virtualization_data[:system] = $1
@virtualization_data[:role] = "guest"
elsif /container=podman/.match?(file_read("/proc/1/environ"))
@virtualization_data[:system] = "podman"
@virtualization_data[:role] = "guest"
elsif lxc_version_exists? && cgroup_content =~ %r{\d:[^:]+:/$}
# lxc-version shouldn't be installed by default
# Even so, it is likely we are on an LXC capable host that is not being used as such
@ -297,7 +303,7 @@ module Inspec::Resources
return if detect_docker
return if detect_virtualbox
return if detect_lxd
return if detect_lxc_docker
return if detect_container
return if detect_linux_vserver
return if detect_kvm_from_cpuinfo
return if detect_kvm_from_sys