Use salt pillars to pass test arguments during cluster creation.

cluster/gce/config-test.sh

@@ -53,6 +53,14 @@ SERVICE_CLUSTER_IP_RANGE="10.0.0.0/16"  # formerly PORTAL_NET
 #   google   - Heapster, Google Cloud Monitoring, and Google Cloud Logging
 ENABLE_CLUSTER_MONITORING="${KUBE_ENABLE_CLUSTER_MONITORING:-influxdb}"
 
+TEST_CLUSTER_LOG_LEVEL="${TEST_CLUSTER_LOG_LEVEL:---v=4}"
+
+KUBELET_TEST_ARGS="--max-pods=100 $TEST_CLUSTER_LOG_LEVEL"
+APISERVER_TEST_ARGS="TEST_CLUSTER_LOG_LEVEL"
+CONTROLLER_MANAGER_TEST_ARGS="TEST_CLUSTER_LOG_LEVEL"
+SCHEDULER_TEST_ARGS="TEST_CLUSTER_LOG_LEVEL"
+KUBEPROXY_TEST_ARGS="TEST_CLUSTER_LOG_LEVEL"
+
 # Optional: Enable node logging.
 ENABLE_NODE_LOGGING="${KUBE_ENABLE_NODE_LOGGING:-true}"
 LOGGING_DESTINATION="${KUBE_LOGGING_DESTINATION:-elasticsearch}" # options: elasticsearch, gcp

cluster/gce/configure-vm.sh

@@ -277,6 +277,32 @@ dns_server: '$(echo "$DNS_SERVER_IP" | sed -e "s/'/''/g")'
 dns_domain: '$(echo "$DNS_DOMAIN" | sed -e "s/'/''/g")'
 admission_control: '$(echo "$ADMISSION_CONTROL" | sed -e "s/'/''/g")'
 EOF
+
+    if [ -n "${APISERVER_TEST_ARGS:-}" ]; then
+      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
+apiserver_test_args: '$(echo "$APISERVER_TEST_ARGS" | sed -e "s/'/''/g")'
+EOF
+    fi
+    if [ -n "${KUBELET_TEST_ARGS:-}" ]; then
+      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
+kubelet_test_args: '$(echo "$KUBELET_TEST_ARGS" | sed -e "s/'/''/g")'
+EOF
+    fi
+    if [ -n "${CONTROLLER_MANAGER_TEST_ARGS:-}" ]; then
+      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
+controller_manager_test_args: '$(echo "$CONTROLLER_MANAGER_TEST_ARGS" | sed -e "s/'/''/g")'
+EOF
+    fi
+    if [ -n "${SCHEDULER_TEST_ARGS:-}" ]; then
+      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
+scheduler_test_args: '$(echo "$SCHEDULER_TEST_ARGS" | sed -e "s/'/''/g")'
+EOF
+    fi
+    if [ -n "${KUBEPROXY_TEST_ARGS:-}" ]; then
+      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
+kubeproxy_test_args: '$(echo "$KUBEPROXY_TEST_ARGS" | sed -e "s/'/''/g")'
+EOF
+    fi
 }
 
 # This should only happen on cluster initialization.

cluster/gce/debian/helper.sh

@@ -67,6 +67,26 @@ MASTER_KEY: $(yaml-quote ${MASTER_KEY_BASE64:-})
 KUBECFG_CERT: $(yaml-quote ${KUBECFG_CERT_BASE64:-})
 KUBECFG_KEY: $(yaml-quote ${KUBECFG_KEY_BASE64:-})
 EOF
+    if [ -n "${APISERVER_TEST_ARGS:-}" ]; then
+      cat >>$file <<EOF
+APISERVER_TEST_ARGS: $(yaml-quote ${APISERVER_TEST_ARGS})
+EOF
+    fi
+    if [ -n "${KUBELET_TEST_ARGS:-}" ]; then
+      cat >>$file <<EOF
+KUBELET_TEST_ARGS: $(yaml-quote ${KUBELET_TEST_ARGS})
+EOF
+    fi
+    if [ -n "${CONTROLLER_MANAGER_TEST_ARGS:-}" ]; then
+      cat >>$file <<EOF
+CONTROLLER_MANAGER_TEST_ARGS: $(yaml-quote ${CONTROLLER_MANAGER_TEST_ARGS})
+EOF
+    fi
+    if [ -n "${SCHEDULER_TEST_ARGS:-}" ]; then
+      cat >>$file <<EOF
+SCHEDULER_TEST_ARGS: $(yaml-quote ${SCHEDULER_TEST_ARGS})
+EOF
+    fi
   else
     # Node-only env vars.
     cat >>$file <<EOF
@@ -76,6 +96,16 @@ EXTRA_DOCKER_OPTS: $(yaml-quote ${EXTRA_DOCKER_OPTS:-})
 KUBELET_CERT: $(yaml-quote ${KUBELET_CERT_BASE64:-})
 KUBELET_KEY: $(yaml-quote ${KUBELET_KEY_BASE64:-})
 EOF
+    if [ -n "${KUBELET_TEST_ARGS:-}" ]; then
+      cat >>$file <<EOF
+KUBELET_TEST_ARGS: $(yaml-quote ${KUBELET_TEST_ARGS})
+EOF
+    fi
+    if [ -n "${KUBEPROXY_TEST_ARGS:-}" ]; then
+      cat >>$file <<EOF
+KUBEPROXY_TEST_ARGS: $(yaml-quote ${KUBEPROXY_TEST_ARGS})
+EOF
+    fi
   fi
 }
 

cluster/saltbase/salt/kube-apiserver/kube-apiserver.manifest

@@ -91,6 +91,11 @@
 {% set params = address + " " + etcd_servers + " " + cloud_provider + " " + cloud_config + " " + runtime_config + " " + admission_control + " " + service_cluster_ip_range + " " + client_ca_file + " " + basic_auth_file + " " + min_request_timeout -%}
 {% set params = params + " " + cluster_name + " " + cert_file + " " + key_file + " --secure_port=" + secure_port + " " + token_auth_file + " " + bind_address + " " + pillar['log_level'] + " " + advertise_address  + " " + proxy_ssh_options -%}
 
+# test_args has to be kept at the end, so they'll overwrite any prior configuration
+{% if pillar['apiserver_test_args'] is defined -%}
+{% set params = params + " " + pillar['apiserver_test_args'] -%}
+{% endif -%}
+
 {
 "apiVersion": "v1",
 "kind": "Pod",

cluster/saltbase/salt/kube-controller-manager/kube-controller-manager.manifest

@@ -36,6 +36,11 @@
 
 {% set params = "--master=127.0.0.1:8080" + " " + cluster_name + " " + cluster_cidr + " " + allocate_node_cidrs + " " + cloud_provider  + " " + cloud_config + service_account_key + pillar['log_level'] + " " + root_ca_file -%}
 
+# test_args has to be kept at the end, so they'll overwrite any prior configuration
+{% if pillar['controller_manager_test_args'] is defined -%}
+{% set params = params + " " + pillar['controller_manager_test_args'] -%}
+{% endif -%}
+
 {
 "apiVersion": "v1",
 "kind": "Pod",

cluster/saltbase/salt/kube-proxy/default

@@ -25,4 +25,13 @@
   {% endif -%}
 
 {% endif -%}
+
+{% set test_args = "" -%}
+{% if pillar['kubeproxy_test_args'] is defined -%}
+  {% set test_args=pillar['kubeproxy_test_args'] %}
+{% endif -%}
+
 DAEMON_ARGS="{{daemon_args}} {{api_servers_with_port}} {{kubeconfig}} {{pillar['log_level']}}"
+
+# test_args has to be kept at the end, so they'll overwrite any prior configuration
+DAEMON_ARGS="$DAEMON_ARGS + {{test_args}}"

cluster/saltbase/salt/kube-scheduler/kube-scheduler.manifest

+{% set params = "{{pillar['log_level']}}" -%}
+
+# test_args has to be kept at the end, so they'll overwrite any prior configuration
+{% if pillar['scheduler_test_args'] is defined -%}
+{% set params = params + " " + pillar['scheduler_test_args'] -%}
+{% endif -%}
+
 {
 "apiVersion": "v1",
 "kind": "Pod",
@@ -16,7 +23,7 @@
     "command": [
                  "/bin/sh",
                  "-c",
-                 "/usr/local/bin/kube-scheduler --master=127.0.0.1:8080 {{pillar['log_level']}} 1>>/var/log/kube-scheduler.log 2>&1"
+                 "/usr/local/bin/kube-scheduler --master=127.0.0.1:8080 {{params}} 1>>/var/log/kube-scheduler.log 2>&1"
                ],
     "livenessProbe": {
       "httpGet": {

cluster/saltbase/salt/kubelet/default

@@ -90,4 +90,12 @@
   {% set pod_cidr = "--pod-cidr=" + grains['cbr-cidr'] %}
 {% endif %} 
 
+{% set test_args = "" -%}
+{% if pillar['kubelet_test_args'] is defined -%}
+  {% set test_args=pillar['kubelet_test_args'] %}
+{% endif -%}
+
 DAEMON_ARGS="{{daemon_args}} {{api_servers_with_port}} {{debugging_handlers}} {{hostname_override}} {{cloud_provider}} {{config}} {{manifest_url}} --allow_privileged={{pillar['allow_privileged']}} {{pillar['log_level']}} {{cluster_dns}} {{cluster_domain}} {{docker_root}} {{kubelet_root}} {{configure_cbr0}} {{cgroup_root}} {{system_container}} {{pod_cidr}}"
+
+# test_args has to be kept at the end, so they'll overwrite any prior configuration
+DAEMON_ARGS="$DAEMON_ARGS + {{test_args}}"