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kube-bench/cfg/rh-1.0/etcd.yaml

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---
controls:
version: rh-1.0
id: 2
text: "Etcd Node Configuration"
type: "etcd"
groups:
- id: 2
text: "Etcd Node Configuration Files"
checks:
- id: 2.1
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Manual)"
audit: |
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--cert-file=[^ ]*\).*/\1/'
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--key-file=[^ ]*\).*/\1/'
fi
use_multiple_values: true
tests:
test_items:
- flag: "file"
compare:
op: regex
value: '\/etc\/kubernetes\/static-pod-certs\/secrets\/etcd-all-serving\/etcd-serving-.*\.(?:crt|key)'
remediation: |
OpenShift does not use the etcd-certfile or etcd-keyfile flags.
Certificates for etcd are managed by the etcd cluster operator.
scored: false
- id: 2.2
text: "Ensure that the --client-cert-auth argument is set to true (Manual)"
audit: |
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--client-cert-auth=[^ ]*\).*/\1/'
fi
use_multiple_values: true
tests:
test_items:
- flag: "--client-cert-auth"
compare:
op: eq
value: true
remediation: |
This setting is managed by the cluster etcd operator. No remediation required."
scored: false
- id: 2.3
text: "Ensure that the --auto-tls argument is not set to true (Manual)"
audit: |
# Returns 0 if found, 1 if not found
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | grep -- --auto-tls=true 2>/dev/null ; echo exit_code=$?
fi
use_multiple_values: true
tests:
test_items:
- flag: "exit_code"
compare:
op: eq
value: "1"
remediation: |
This setting is managed by the cluster etcd operator. No remediation required.
scored: false
- id: 2.4
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Manual)"
audit: |
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-cert-file=[^ ]*\).*/\1/'
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-key-file=[^ ]*\).*/\1/'
fi
use_multiple_values: true
tests:
test_items:
- flag: "file"
compare:
op: regex
value: '\/etc\/kubernetes\/static-pod-certs\/secrets\/etcd-all-peer\/etcd-peer-.*\.(?:crt|key)'
remediation: |
None. This configuration is managed by the etcd operator.
scored: false
- id: 2.5
text: "Ensure that the --peer-client-cert-auth argument is set to true (Manual)"
audit: |
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-client-cert-auth=[^ ]*\).*/\1/'
fi
use_multiple_values: true
tests:
test_items:
- flag: "--peer-client-cert-auth"
compare:
op: eq
value: true
remediation: |
This setting is managed by the cluster etcd operator. No remediation required.
scored: false
- id: 2.6
text: "Ensure that the --peer-auto-tls argument is not set to true (Manual)"
audit: |
# Returns 0 if found, 1 if not found
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | grep -- --peer-auto-tls=true 2>/dev/null ; echo exit_code=$?
fi
use_multiple_values: true
tests:
test_items:
- flag: "exit_code"
compare:
op: eq
value: "1"
remediation: |
This setting is managed by the cluster etcd operator. No remediation required.
scored: false
- id: 2.7
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
audit: |
# Get the node name where the pod is running
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
# Get the pod name in the openshift-etcd namespace
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
if [ -z "$POD_NAME" ]; then
echo "No matching file found on the current node."
else
# Execute the stat command
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--trusted-ca-file=[^ ]*\).*/\1/'
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-trusted-ca-file=[^ ]*\).*/\1/'
fi
use_multiple_values: true
tests:
test_items:
- flag: "file"
compare:
op: regex
value: '\/etc\/kubernetes\/static-pod-certs\/configmaps\/etcd-(?:serving|peer-client)-ca\/ca-bundle\.(?:crt|key)'
remediation: |
None required. Certificates for etcd are managed by the OpenShift cluster etcd operator.
scored: false