Merge pull request #1 from Nilsty/logs

Add keyword and tests for "Get Pod Logs"

.gitignore

@@ -5,4 +5,8 @@
 *.pyo
 src/robotframework_kubelibrary.egg-info/
 dist/
-build/
+build/
+
+log.html
+output.xml
+report.html

README.md

@@ -70,8 +70,11 @@ export KLIB_RESOURCE_REQUESTS_MEMORY=20Mi
 robot -i octopus testcases/
 
 # run other library tests
-kubectl create namespace kubelib-tests
-helm install kubelib-test ./test-objects-chart -n kubelib-tests
+kubectl create namespace $KLIB_POD_NAMESPACE
+helm install kubelib-test ./test-objects-chart -n $KLIB_POD_NAMESPACE
+
+export KLIB_POD_PATTERN='busybox.*'
+export KLIB_POD_NAMESPACE=kubelib-tests
 
 robot -i other testcases/
 ```

src/KubeLibrary/KubeLibrary.py

@@ -118,6 +118,21 @@ def get_pods_in_namespace(self, name_pattern, namespace):
         r = re.compile(name_pattern)
         pods = [item for item in ret.items if r.match(item.metadata.name)]
         return pods
+
+    def get_pod_logs(self, name, namespace, container):
+        """Gets container logs of given pod in given namespace.
+
+        Returns logs.
+
+        - ``name``:
+          Pod name to check
+        - ``namespace``:
+          Namespace to check
+        - ``container``:
+          Container to check
+        """
+        pod_logs = self.v1.read_namespaced_pod_log(name=name, namespace=namespace, container=container, follow=False)
+        return pod_logs
 
     def get_configmaps_in_namespace(self, name_pattern, namespace):
         """Gets configmaps matching pattern in given namespace.

testcases/pod/pod.robot

@@ -61,3 +61,10 @@ Pod has correct env variables
     Given waited for pods matching "${KLIB_POD_PATTERN}" in namespace "${KLIB_POD_NAMESPACE}" to be running
     When getting pods matching "${KLIB_POD_PATTERN}" in namespace "${KLIB_POD_NAMESPACE}"
     Then pods containers have env variables "${KLIB_ENV_VARS}"
+
+Logs of pod are available
+    [Tags]    other
+    Given waited for pods matching "${KLIB_POD_PATTERN}" in namespace "${KLIB_POD_NAMESPACE}" to be running
+    When getting pods matching "${KLIB_POD_PATTERN}" in namespace "${KLIB_POD_NAMESPACE}"
+    Then logs of pod can be retrived
+    And logs contain expected string

testcases/pod/pod_kw.robot

@@ -90,3 +90,12 @@ pods containers have env variables "${container_env_vars}"
         ${assertion}=    assert_container_has_env_vars    ${container}    ${container_env_vars}
         Should Be True    ${assertion}
     END
+
+logs of pod can be retrived
+    Set Test Variable    ${POD_NAME}    ${namespace_pods[0].metadata.name}
+    ${pod_logs}=  Get Pod Logs  ${POD_NAME}  ${KLIB_POD_NAMESPACE}  busybox
+    Log  ${pod_logs}  console=True
+    Set Test Variable    ${POD_LOGS}    ${pod_logs}
+
+logs contain expected string
+    Should Contain    ${POD_LOGS}    I am