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101 lines
4.1 KiB
101 lines
4.1 KiB
#!/bin/bash
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namespace="kubeflow"
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error_flag=0
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# Function to check if 'id' command is available in a container
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has_id_command() {
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local pod_name="$1"
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local container_name="$2"
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# Execute 'id' command and capture the output
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if kubectl exec -it -n "$namespace" "$pod_name" -c "$container_name" -- id -u >/dev/null 2>&1; then
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return 0 # 'id' command is available
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else
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return 1 # 'id' command is not available
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fi
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}
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# Function to check 'securityContext' and 'runAsNonRoot' at the pod or container level
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has_securityContext_and_runAsNonRoot() {
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local pod_name="$1"
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local container_name="$2"
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# Use jq to check if 'securityContext' is defined at the pod level
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local securityContextPod=$(kubectl get pod -n "$namespace" "$pod_name" -o json | jq -r '.spec.securityContext')
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if [ "$securityContextPod" = "null" ]; then
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: # 'securityContext' is missing at the pod level, continue checking at the container level
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else
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# Check 'runAsNonRoot' at the pod level
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local runAsNonRootPod=$(kubectl get pod -n "$namespace" "$pod_name" -o json | jq -r '.spec.securityContext.runAsNonRoot // "Missing"')
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if [ "$runAsNonRootPod" = "Missing" ]; then
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: # 'runAsNonRoot' is missing at the pod level, continue checking at the container level
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else
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return 0 # 'runAsNonRoot' is present at the pod level (success)
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fi
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fi
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# Use jq to check 'securityContext' at the container level
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local securityContextContainer=$(kubectl get pod -n "$namespace" "$pod_name" -o json | jq -r '.spec.containers[] | select(.name == "'"$container_name"'").securityContext')
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if [ "$securityContextContainer" = "null" ]; then
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if [ "$securityContextPod" = "null" ]; then
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echo "Error: 'securityContext' is missing at the pod and container level in container $container_name of pod $pod_name"
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return 1
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else
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echo "Error: There is no runasnonroot on pod level and 'securityContext' is missing at container level in container $container_name of pod $pod_name"
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return 1
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fi
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fi
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# Check 'runAsNonRoot' at the container level
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local runAsNonRootContainer=$(kubectl get pod -n "$namespace" "$pod_name" -o json | jq -r '.spec.containers[] | select(.name == "'"$container_name"'").securityContext.runAsNonRoot // "Missing"')
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if [ "$runAsNonRootContainer" = "Missing" ]; then
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echo "Error: There is no runasnonroot on pod level and'runAsNonRoot' is missing in container $container_name of pod $pod_name"
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return 1 # 'runAsNonRoot' is missing at the container level (fail)
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fi
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return 0 # 'securityContext' and 'runAsNonRoot' are defined at the container level
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}
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# Get a list of pod names in the specified namespace that are not in the "Completed" state
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pod_names=$(kubectl get pods -n "$namespace" --field-selector=status.phase!=Succeeded,status.phase!=Failed -o json | jq -r '.items[].metadata.name')
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# Loop through the pod names and execute checks
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for pod_name in $pod_names; do
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echo "Entering pod $pod_name in namespace $namespace..."
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container_names=$(kubectl get pod -n "$namespace" "$pod_name" -o json | jq -r '.spec.containers[].name')
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for container_name in $container_names; do
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if has_securityContext_and_runAsNonRoot "$pod_name" "$container_name"; then
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error_flag=1
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fi
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if has_id_command "$pod_name" "$container_name"; then
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user_id=$(kubectl exec -it -n "$namespace" "$pod_name" -c "$container_name" -- id -u)
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# Clean up whitespace in the user_id using tr
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user_id_cleaned=$(echo -n "$user_id" | tr -d '[:space:]')
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if [ "$user_id_cleaned" = "0" ]; then
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echo "Error: Pod $pod_name contains user ID 0 in container $container_name"
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error_flag=1
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else
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echo "Container: $container_name - User ID: $user_id_cleaned"
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fi
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else
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echo "Warning: 'id' command not available in container $container_name"
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fi
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done
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done
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# This allows us to collect information about non-compliant containers without breaking the build
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echo "Security check completed. Found $error_flag issues that would normally cause failure."
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echo "Exiting with success for CI testing purposes."
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# Always exit with success in CI environment
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exit 0
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