1 files changed, 92 insertions, 0 deletions
diff --git a/so-cnfm/so-cnfm-lcm/so-cnfm-lcm-bpmn-flows/src/main/java/org/onap/so/cnfm/lcm/bpmn/flows/service/KubConfigProviderImpl.java b/so-cnfm/so-cnfm-lcm/so-cnfm-lcm-bpmn-flows/src/main/java/org/onap/so/cnfm/lcm/bpmn/flows/service/KubConfigProviderImpl.java
new file mode 100644
index 0000000..9f42038
--- /dev/null
+++ b/so-cnfm/so-cnfm-lcm/so-cnfm-lcm-bpmn-flows/src/main/java/org/onap/so/cnfm/lcm/bpmn/flows/service/KubConfigProviderImpl.java
@@ -0,0 +1,92 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2023 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.cnfm.lcm.bpmn.flows.service;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.util.Arrays;
+import org.onap.so.cnfm.lcm.bpmn.flows.exceptions.KubeConfigFileNotFoundException;
+import org.onap.so.cnfm.lcm.bpmn.flows.exceptions.KubeConfigFileUploadException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+/**
+ *
+ * @author Waqas Ikram (waqas.ikram@est.tech)
+ *
+ */
+@Service
+public class KubConfigProviderImpl implements KubConfigProvider {
+    private static final Logger logger = LoggerFactory.getLogger(KubConfigProviderImpl.class);
+
+    private final Path kubeConfigsDirPath;
+
+    @Autowired
+    public KubConfigProviderImpl(@Value("${cnfm.kube-configs-dir:/app/kube-configs}") final String kubeConfigsDir) {
+        this.kubeConfigsDirPath = Paths.get(kubeConfigsDir).toAbsolutePath().normalize();
+    }
+
+    @Override
+    public Path getKubeConfigFile(final String cloudOwner, final String cloudRegion, final String tenantId)
+            throws KubeConfigFileNotFoundException {
+        final String filename = getFilename(cloudOwner, cloudRegion, tenantId);
+        final Path targetLocation = this.kubeConfigsDirPath.resolve(filename);
+        logger.debug("Looking for kube-config file at location {}", targetLocation);
+
+        if (Files.exists(targetLocation)) {
+            logger.debug("Found kube-config file at location {}", targetLocation);
+            if (Files.isReadable(targetLocation)) {
+                return targetLocation;
+            }
+            throw new KubeConfigFileNotFoundException("kube-config file at " + targetLocation + " is not readable");
+        }
+
+        throw new KubeConfigFileNotFoundException("Unable to find kube-config file at " + targetLocation);
+    }
+
+    @Override
+    public void addKubeConfigFile(final MultipartFile file, final String cloudOwner, final String cloudRegion,
+            final String tenantId) {
+        final String filename = getFilename(cloudOwner, cloudRegion, tenantId);
+        final Path targetLocation = this.kubeConfigsDirPath.resolve(filename);
+
+        try (final InputStream inputStream = file.getInputStream()) {
+            logger.debug("Storing kube-config to location {} ", targetLocation);
+            Files.copy(inputStream, targetLocation, StandardCopyOption.REPLACE_EXISTING);
+        } catch (final IOException ex) {
+            throw new KubeConfigFileUploadException(
+                    "Could not store kube-config file " + filename + " to location " + targetLocation, ex);
+        }
+
+    }
+
+    private String getFilename(final String cloudOwner, final String cloudRegion, final String tenantId) {
+        return String.join("-", Arrays.asList(cloudOwner, cloudRegion, tenantId));
+    }
+
+}