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Replace custom k3s etcd script checks with vanilla grep checks (#1601)

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* Replace custom k3s etcd script checks with vanilla grep checks

Signed-off-by: Derek Nola <derek.nola@suse.com>

* Rework etcd grep, remove etcd ENV checks (no-op), add correct k3s etcddatadir

Signed-off-by: Derek Nola <derek.nola@suse.com>

* chore: update go-linter version

Signed-off-by: chenk <hen.keinan@gmail.com>

* Use etcddatadir variable

Signed-off-by: Derek Nola <derek.nola@suse.com>

---------

Signed-off-by: Derek Nola <derek.nola@suse.com>
Signed-off-by: chenk <hen.keinan@gmail.com>
Co-authored-by: chenk <hen.keinan@gmail.com>
pull/1536/merge
Derek Nola 4 weeks ago committed by GitHub
parent 2a8615befd
commit ed51191d7c
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
11 changed files with 37 additions and 63 deletions
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2
.github/workflows/build.yml vendored
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@ -34,7 +34,7 @@ jobs:
- name: Setup golangci-lint
uses: golangci/golangci-lint-action@v4
with:
version: latest
version: v1.57.2
args: --verbose
unit:
name: Unit tests

3
cfg/config.yaml
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@ -95,6 +95,7 @@ master:
datadirs:
- /var/lib/etcd/default.etcd
- /var/lib/etcd/data.etcd
- /var/lib/rancher/k3s/server/db/etcd
confs:
- /etc/kubernetes/manifests/etcd.yaml
- /etc/kubernetes/manifests/etcd.yml
@ -105,6 +106,7 @@ master:
- /var/snap/microk8s/current/args/etcd
- /usr/lib/systemd/system/etcd.service
- /var/lib/rancher/rke2/server/db/etcd/config
- /var/lib/rancher/k3s/server/db/etcd/config
defaultconf: /etc/kubernetes/manifests/etcd.yaml
defaultdatadir: /var/lib/etcd/default.etcd
@ -234,6 +236,7 @@ etcd:
datadirs:
- /var/lib/etcd/default.etcd
- /var/lib/etcd/data.etcd
- /var/lib/rancher/k3s/server/db/etcd
confs:
- /etc/kubernetes/manifests/etcd.yaml
- /etc/kubernetes/manifests/etcd.yml

3
cfg/k3s-cis-1.23/config.yaml
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@ -24,7 +24,8 @@ master:
etcd:
bins:
- containerd
datadirs:
- /var/lib/rancher/k3s/server/db/etcd
node:
components:
- kubelet

25
cfg/k3s-cis-1.23/etcd.yaml
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@ -10,15 +10,13 @@ groups:
checks:
- id: 2.1
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 2.1"
audit: "grep -A 4 'client-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
tests:
bin_op: and
test_items:
- flag: "cert-file"
env: "ETCD_CERT_FILE"
set: true
- flag: "key-file"
env: "ETCD_KEY_FILE"
set: true
remediation: |
Follow the etcd service documentation and configure TLS encryption.
@ -30,14 +28,13 @@ groups:
- id: 2.2
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.2"
audit: "grep -A 4 'client-transport-security' $etcdconf | grep 'client-cert-auth'"
tests:
bin_op: or
test_items:
- flag: "--client-cert-auth"
set: true
- flag: "client-cert-auth"
env: "ETCD_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
@ -50,15 +47,13 @@ groups:
- id: 2.3
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.3"
audit: "if grep -q '^auto-tls' $etcdconf;then grep '^auto-tls' $etcdconf;else echo 'notset';fi"
tests:
bin_op: or
test_items:
- flag: "--auto-tls"
env: "ETCD_AUTO_TLS"
set: false
- flag: "--auto-tls"
env: "ETCD_AUTO_TLS"
compare:
op: eq
value: false
@ -70,15 +65,13 @@ groups:
- id: 2.4
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 2.4"
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
tests:
bin_op: and
test_items:
- flag: "cert-file"
env: "ETCD_PEER_CERT_FILE"
set: true
- flag: "key-file"
env: "ETCD_PEER_KEY_FILE"
set: true
remediation: |
Follow the etcd service documentation and configure peer TLS encryption as appropriate
@ -91,14 +84,13 @@ groups:
- id: 2.5
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.5"
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep 'client-cert-auth'"
tests:
bin_op: or
test_items:
- flag: "--client-cert-auth"
set: true
- flag: "client-cert-auth"
env: "ETCD_PEER_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
@ -111,15 +103,13 @@ groups:
- id: 2.6
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.6"
audit: "if grep -q '^peer-auto-tls' $etcdconf;then grep '^peer-auto-tls' $etcdconf;else echo 'notset';fi"
tests:
bin_op: or
test_items:
- flag: "--peer-auto-tls"
env: "ETCD_PEER_AUTO_TLS"
set: false
- flag: "--peer-auto-tls"
env: "ETCD_PEER_AUTO_TLS"
compare:
op: eq
value: false
@ -132,11 +122,10 @@ groups:
- id: 2.7
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
audit: "check_for_k3s_etcd.sh 2.7"
audit: "if grep -q 'trusted-ca-file' $etcdconf;then grep 'trusted-ca-file' $etcdconf;else echo 'notset';fi"
tests:
test_items:
- flag: "trusted-ca-file"
env: "ETCD_TRUSTED_CA_FILE"
set: true
remediation: |
[Manual test]

4
cfg/k3s-cis-1.23/master.yaml
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@ -155,7 +155,7 @@ groups:
- id: 1.1.11
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
audit: "check_for_k3s_etcd.sh 1.1.11"
audit: "stat -c %a $etcddatadir"
tests:
test_items:
- flag: "700"
@ -736,7 +736,7 @@ groups:
- id: 1.2.26
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 1.2.29"
audit: "journalctl -D /var/log/journal -u k3s | grep -m1 'Running kube-apiserver'"
tests:
bin_op: and
test_items:

2
cfg/k3s-cis-1.24/config.yaml
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@ -24,6 +24,8 @@ master:
etcd:
bins:
- containerd
datadirs:
- /var/lib/rancher/k3s/server/db/etcd
node:
components:

25
cfg/k3s-cis-1.24/etcd.yaml
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@ -10,15 +10,13 @@ groups:
checks:
- id: 2.1
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 2.1"
audit: "grep -A 4 'client-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
tests:
bin_op: and
test_items:
- flag: "cert-file"
env: "ETCD_CERT_FILE"
set: true
- flag: "key-file"
env: "ETCD_KEY_FILE"
set: true
remediation: |
Follow the etcd service documentation and configure TLS encryption.
@ -30,14 +28,13 @@ groups:
- id: 2.2
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.2"
audit: "grep -A 4 'client-transport-security' $etcdconf | grep 'client-cert-auth'"
tests:
bin_op: or
test_items:
- flag: "--client-cert-auth"
set: true
- flag: "client-cert-auth"
env: "ETCD_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
@ -50,15 +47,13 @@ groups:
- id: 2.3
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.3"
audit: "if grep -q '^auto-tls' $etcdconf;then grep '^auto-tls' $etcdconf;else echo 'notset';fi"
tests:
bin_op: or
test_items:
- flag: "--auto-tls"
env: "ETCD_AUTO_TLS"
set: false
- flag: "--auto-tls"
env: "ETCD_AUTO_TLS"
compare:
op: eq
value: false
@ -70,15 +65,13 @@ groups:
- id: 2.4
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 2.4"
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
tests:
bin_op: and
test_items:
- flag: "cert-file"
env: "ETCD_PEER_CERT_FILE"
set: true
- flag: "key-file"
env: "ETCD_PEER_KEY_FILE"
set: true
remediation: |
Follow the etcd service documentation and configure peer TLS encryption as appropriate
@ -91,14 +84,13 @@ groups:
- id: 2.5
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.5"
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep 'client-cert-auth'"
tests:
bin_op: or
test_items:
- flag: "--client-cert-auth"
set: true
- flag: "client-cert-auth"
env: "ETCD_PEER_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
@ -111,15 +103,13 @@ groups:
- id: 2.6
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.6"
audit: "if grep -q '^peer-auto-tls' $etcdconf;then grep '^peer-auto-tls' $etcdconf;else echo 'notset';fi"
tests:
bin_op: or
test_items:
- flag: "--peer-auto-tls"
env: "ETCD_PEER_AUTO_TLS"
set: false
- flag: "--peer-auto-tls"
env: "ETCD_PEER_AUTO_TLS"
compare:
op: eq
value: false
@ -132,11 +122,10 @@ groups:
- id: 2.7
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
audit: "check_for_k3s_etcd.sh 2.7"
audit: "if grep -q 'trusted-ca-file' $etcdconf;then grep 'trusted-ca-file' $etcdconf;else echo 'notset';fi"
tests:
test_items:
- flag: "trusted-ca-file"
env: "ETCD_TRUSTED_CA_FILE"
set: true
remediation: |
[Manual test]

4
cfg/k3s-cis-1.24/master.yaml
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@ -155,7 +155,7 @@ groups:
- id: 1.1.11
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
audit: "check_for_k3s_etcd.sh 1.1.11"
audit: "stat -c %a $etcddatadir"
tests:
test_items:
- flag: "700"
@ -735,7 +735,7 @@ groups:
- id: 1.2.26
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 1.2.29"
audit: "journalctl -D /var/log/journal -u k3s | grep -m1 'Running kube-apiserver'"
tests:
bin_op: and
test_items:

3
cfg/k3s-cis-1.7/config.yaml
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@ -31,7 +31,8 @@ master:
etcd:
bins:
- containerd
datadirs:
- /var/lib/rancher/k3s/server/db/etcd
node:
components:
- kubelet

25
cfg/k3s-cis-1.7/etcd.yaml
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@ -10,15 +10,13 @@ groups:
checks:
- id: 2.1
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 2.1"
audit: "grep -A 4 'client-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
tests:
bin_op: and
test_items:
- flag: "cert-file"
env: "ETCD_CERT_FILE"
set: true
- flag: "key-file"
env: "ETCD_KEY_FILE"
set: true
remediation: |
Follow the etcd service documentation and configure TLS encryption.
@ -30,14 +28,13 @@ groups:
- id: 2.2
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.2"
audit: "grep -A 4 'client-transport-security' $etcdconf | grep 'client-cert-auth'"
tests:
bin_op: or
test_items:
- flag: "--client-cert-auth"
set: true
- flag: "client-cert-auth"
env: "ETCD_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
@ -50,15 +47,13 @@ groups:
- id: 2.3
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.3"
audit: "if grep -q '^auto-tls' $etcdconf;then grep '^auto-tls' $etcdconf;else echo 'notset';fi"
tests:
bin_op: or
test_items:
- flag: "--auto-tls"
env: "ETCD_AUTO_TLS"
set: false
- flag: "--auto-tls"
env: "ETCD_AUTO_TLS"
compare:
op: eq
value: false
@ -70,15 +65,13 @@ groups:
- id: 2.4
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 2.4"
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
tests:
bin_op: and
test_items:
- flag: "cert-file"
env: "ETCD_PEER_CERT_FILE"
set: true
- flag: "key-file"
env: "ETCD_PEER_KEY_FILE"
set: true
remediation: |
Follow the etcd service documentation and configure peer TLS encryption as appropriate
@ -91,14 +84,13 @@ groups:
- id: 2.5
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.5"
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep 'client-cert-auth'"
tests:
bin_op: or
test_items:
- flag: "--client-cert-auth"
set: true
- flag: "client-cert-auth"
env: "ETCD_PEER_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
@ -111,15 +103,13 @@ groups:
- id: 2.6
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
audit: "check_for_k3s_etcd.sh 2.6"
audit: "if grep -q '^peer-auto-tls' $etcdconf;then grep '^peer-auto-tls' $etcdconf;else echo 'notset';fi"
tests:
bin_op: or
test_items:
- flag: "--peer-auto-tls"
env: "ETCD_PEER_AUTO_TLS"
set: false
- flag: "--peer-auto-tls"
env: "ETCD_PEER_AUTO_TLS"
compare:
op: eq
value: false
@ -132,11 +122,10 @@ groups:
- id: 2.7
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
audit: "check_for_k3s_etcd.sh 2.7"
audit: "if grep -q 'trusted-ca-file' $etcdconf;then grep 'trusted-ca-file' $etcdconf;else echo 'notset';fi"
tests:
test_items:
- flag: "trusted-ca-file"
env: "ETCD_TRUSTED_CA_FILE"
set: true
remediation: |
[Manual test]

4
cfg/k3s-cis-1.7/master.yaml
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@ -167,7 +167,7 @@ groups:
- id: 1.1.11
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
audit: "check_for_k3s_etcd.sh 1.1.11"
audit: "stat -c %a $etcddatadir"
tests:
test_items:
- flag: "700"
@ -738,7 +738,7 @@ groups:
- id: 1.2.25
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
audit: "check_for_k3s_etcd.sh 1.2.29"
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1"
tests:
bin_op: and
test_items:

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