1 files changed, 69 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/filter_kubernetes/kube_meta.h b/src/fluent-bit/plugins/filter_kubernetes/kube_meta.h
new file mode 100644
index 000000000..fb0278afc
--- /dev/null
+++ b/src/fluent-bit/plugins/filter_kubernetes/kube_meta.h
@@ -0,0 +1,69 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  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.
+ */
+
+#ifndef FLB_FILTER_KUBE_META_H
+#define FLB_FILTER_KUBE_META_H
+
+#include "kube_props.h"
+
+struct flb_kube;
+
+struct flb_kube_meta {
+    int fields;
+
+    int namespace_len;
+    int podname_len;
+    int cache_key_len;
+    int container_name_len;
+    int docker_id_len;
+    int container_hash_len;
+    int container_image_len;
+
+    char *namespace;
+    char *podname;
+    char *container_name;
+    char *container_image;
+    char *docker_id;
+
+    char *container_hash;   /* set only on Systemd mode */
+
+    char *cache_key;
+};
+
+/* Constant Kubernetes paths */
+#define FLB_KUBE_NAMESPACE "/var/run/secrets/kubernetes.io/serviceaccount/namespace"
+#define FLB_KUBE_TOKEN "/var/run/secrets/kubernetes.io/serviceaccount/token"
+#define FLB_KUBE_CA "/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"
+#define FLB_KUBE_API_HOST "kubernetes.default.svc"
+#define FLB_KUBE_API_PORT 443
+#define FLB_KUBE_API_FMT "/api/v1/namespaces/%s/pods/%s"
+#define FLB_KUBELET_PODS "/pods"
+
+int flb_kube_meta_init(struct flb_kube *ctx, struct flb_config *config);
+int flb_kube_meta_fetch(struct flb_kube *ctx);
+int flb_kube_dummy_meta_get(char **out_buf, size_t *out_size);
+int flb_kube_meta_get(struct flb_kube *ctx,
+                      const char *tag, int tag_len,
+                      const char *data, size_t data_size,
+                      const char **out_buf, size_t *out_size,
+                      struct flb_kube_meta *meta,
+                      struct flb_kube_props *props);
+int flb_kube_meta_release(struct flb_kube_meta *meta);
+
+#endif