Remove encryption via locally stored key.

cluster/gce/config-default.sh

@@ -218,25 +218,6 @@ if [[ ${ENABLE_METADATA_CONCEALMENT:-} == "true" ]]; then
   PROVIDER_VARS="${PROVIDER_VARS:-} ENABLE_METADATA_CONCEALMENT METADATA_CONCEALMENT_NO_FIREWALL"
 fi
 
-
-# Enable AESGCM encryption of secrets by default.
-ENCRYPTION_PROVIDER_CONFIG="${ENCRYPTION_PROVIDER_CONFIG:-}"
-if [[ -z "${ENCRYPTION_PROVIDER_CONFIG}" ]]; then
-    ENCRYPTION_PROVIDER_CONFIG=$(cat << EOM | base64 | tr -d '\r\n'
-kind: EncryptionConfiguration
-apiVersion: apiserver.config.k8s.io/v1
-resources:
-  - resources:
-    - secrets
-    providers:
-    - aesgcm:
-        keys:
-        - name: key1
-          secret: $(dd if=/dev/urandom iflag=fullblock bs=32 count=1 2>/dev/null | base64 | tr -d '\r\n')
-EOM
-)
-fi
-
 # Optional: Enable node logging.
 ENABLE_NODE_LOGGING="${KUBE_ENABLE_NODE_LOGGING:-true}"
 LOGGING_DESTINATION="${KUBE_LOGGING_DESTINATION:-gcp}" # options: elasticsearch, gcp

cluster/gce/util.sh

@@ -1283,7 +1283,6 @@ ETCD_CA_KEY: $(yaml-quote ${ETCD_CA_KEY_BASE64:-})
 ETCD_CA_CERT: $(yaml-quote ${ETCD_CA_CERT_BASE64:-})
 ETCD_PEER_KEY: $(yaml-quote ${ETCD_PEER_KEY_BASE64:-})
 ETCD_PEER_CERT: $(yaml-quote ${ETCD_PEER_CERT_BASE64:-})
-ENCRYPTION_PROVIDER_CONFIG: $(yaml-quote ${ENCRYPTION_PROVIDER_CONFIG:-})
 SERVICEACCOUNT_ISSUER: $(yaml-quote ${SERVICEACCOUNT_ISSUER:-})
 EOF
     # KUBE_APISERVER_REQUEST_TIMEOUT_SEC (if set) controls the --request-timeout