ansible-lint: don't compare to empty string [E602] (#4665)

roles/kubernetes/node/tasks/azure-credential-check.yml

@@ -2,57 +2,57 @@
 - name: check azure_tenant_id value
   fail:
     msg: "azure_tenant_id is missing"
-  when: azure_tenant_id is not defined or azure_tenant_id == ""
+  when: azure_tenant_id is not defined or not azure_tenant_id
 
 - name: check openstack_username value
   fail:
     msg: "azure_subscription_id is missing"
-  when: azure_subscription_id is not defined or azure_subscription_id == ""
+  when: azure_subscription_id is not defined or not azure_subscription_id
 
 - name: check azure_aad_client_id value
   fail:
     msg: "azure_aad_client_id is missing"
-  when: azure_aad_client_id is not defined or azure_aad_client_id == ""
+  when: azure_aad_client_id is not defined or not azure_aad_client_id
 
 - name: check azure_aad_client_secret value
   fail:
     msg: "azure_aad_client_secret is missing"
-  when: azure_aad_client_secret is not defined or azure_aad_client_secret == ""
+  when: azure_aad_client_secret is not defined or not azure_aad_client_secret
 
 - name: check azure_resource_group value
   fail:
     msg: "azure_resource_group is missing"
-  when: azure_resource_group is not defined or azure_resource_group == ""
+  when: azure_resource_group is not defined or not azure_resource_group
 
 - name: check azure_location value
   fail:
     msg: "azure_location is missing"
-  when: azure_location is not defined or azure_location == ""
+  when: azure_location is not defined or not azure_location
 
 - name: check azure_subnet_name value
   fail:
     msg: "azure_subnet_name is missing"
-  when: azure_subnet_name is not defined or azure_subnet_name == ""
+  when: azure_subnet_name is not defined or not azure_subnet_name
 
 - name: check azure_security_group_name value
   fail:
     msg: "azure_security_group_name is missing"
-  when: azure_security_group_name is not defined or azure_security_group_name == ""
+  when: azure_security_group_name is not defined or not azure_security_group_name
 
 - name: check azure_vnet_name value
   fail:
     msg: "azure_vnet_name is missing"
-  when: azure_vnet_name is not defined or azure_vnet_name == ""
+  when: azure_vnet_name is not defined or not azure_vnet_name
 
 - name: check azure_vnet_resource_group value
   fail:
     msg: "azure_vnet_resource_group is missing"
-  when: azure_vnet_resource_group is not defined or azure_vnet_resource_group == ""
+  when: azure_vnet_resource_group is not defined or not azure_vnet_resource_group
 
 - name: check azure_route_table_name value
   fail:
     msg: "azure_route_table_name is missing"
-  when: azure_route_table_name is not defined or azure_route_table_name == ""
+  when: azure_route_table_name is not defined or not azure_route_table_name
 
 - name: check azure_loadbalancer_sku value
   fail:

roles/kubernetes/node/tasks/main.yml

@@ -194,7 +194,7 @@
     - cloud_provider is defined
     - cloud_provider == 'openstack'
     - openstack_cacert is defined
-    - openstack_cacert != ""
+    - openstack_cacert
   tags:
     - cloud-provider
 

roles/kubernetes/node/tasks/openstack-credential-check.yml

@@ -2,31 +2,33 @@
 - name: check openstack_auth_url value
   fail:
     msg: "openstack_auth_url is missing"
-  when: openstack_auth_url is not defined or openstack_auth_url == ""
+  when: openstack_auth_url is not defined or not openstack_auth_url
 
 - name: check openstack_username value
   fail:
     msg: "openstack_username is missing"
-  when: openstack_username is not defined or openstack_username == ""
+  when: openstack_username is not defined or not openstack_username
 
 - name: check openstack_password value
   fail:
     msg: "openstack_password is missing"
-  when: openstack_password is not defined or openstack_password == ""
+  when: openstack_password is not defined or not openstack_password
 
 - name: check openstack_region value
   fail:
     msg: "openstack_region is missing"
-  when: openstack_region is not defined or openstack_region == ""
+  when: openstack_region is not defined or not openstack_region
 
 - name: check openstack_tenant_id value
   fail:
     msg: "one of openstack_tenant_id or openstack_trust_id must be specified"
-  when: (openstack_tenant_id is not defined or openstack_tenant_id == "") and
-        openstack_trust_id is not defined
+  when:
+    - openstack_tenant_id is not defined or not openstack_tenant_id
+    - openstack_trust_id is not defined
 
 - name: check openstack_trust_id value
   fail:
     msg: "one of openstack_tenant_id or openstack_trust_id must be specified"
-  when: (openstack_trust_id is not defined or openstack_trust_id == "") and
-        openstack_tenant_id is not defined
+  when:
+    - openstack_trust_id is not defined or not openstack_trust_id
+    - openstack_tenant_id is not defined

roles/kubernetes/node/tasks/vsphere-credential-check.yml

@@ -2,7 +2,7 @@
 - name: check vsphere environment variables
   fail:
     msg: "{{ item.name }} is missing"
-  when: item.value is not defined or item.value == ''
+  when: item.value is not defined or not item.value
   with_items:
     - name: vsphere_vcenter_ip
       value: "{{ vsphere_vcenter_ip }}"

roles/kubernetes/preinstall/tasks/0010-swapoff.yml

@@ -15,4 +15,4 @@
   changed_when: no
 - name: Disable swap
   command: /sbin/swapoff -a
-  when: swapon.stdout != ""
+  when: swapon.stdout

roles/kubernetes/preinstall/tasks/0020-verify-settings.yml

@@ -146,7 +146,7 @@
   when:
     - kube_network_plugin == 'calico'
     - 'calico_version_on_server.stdout is defined'
-    - 'calico_version_on_server.stdout != ""'
+    - calico_version_on_server.stdout
     - inventory_hostname == groups['kube-master'][0]
   run_once: yes
 

roles/kubernetes/tokens/tasks/gen_tokens.yml

@@ -54,5 +54,8 @@
 
 - name: Gen_tokens | Copy tokens on masters
   shell: "echo '{{ tokens_data.stdout|quote }}' | base64 -d | tar xz -C /"
-  when: inventory_hostname in groups['kube-master'] and sync_tokens|default(false) and
-        inventory_hostname != groups['kube-master'][0] and tokens_data.stdout != ''
+  when:
+    - inventory_hostname in groups['kube-master']
+    - sync_tokens|default(false)
+    - inventory_hostname != groups['kube-master'][0]
+    - tokens_data.stdout