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[Configuration]Support configuration for X509 client certificate in kube config file

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This commit is contained in:
Hui Yu
2020-04-05 19:34:24 +08:00
parent d9ae510cdb
commit 705a605e95
12 changed files with 1263 additions and 132 deletions
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4
examples/create_pod/Makefile
View File

@@ -1,5 +1,5 @@
INCLUDE:=-I../../kubernetes/include -I../../kubernetes/model -I../../kubernetes/api
LIBS:=-L../../kubernetes/build -lkubernetes -lcurl -lpthread -lssl -lz
INCLUDE:=-I../../kubernetes/include -I../../kubernetes/model -I../../kubernetes/api -I../../kubernetes/config
LIBS:=-L../../kubernetes/build -lkubernetes -lcurl -lyaml -lpthread -lssl -lz
CFLAGS:=-g
all:

89
examples/create_pod/main.c
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@@ -1,22 +1,10 @@
#include <kube_config.h>
#include <apiClient.h>
#include <CoreV1API.h>
#include <malloc.h>
#include <stdio.h>
#include <errno.h>
// kubectl proxy server
#define K8S_APISERVER_BASEPATH "http://localhost:8001"
// Alternately from within a Kubernetes cluster:
// #define K8S_APISERVER_BASEPATH https://your.server.here
#define K8S_TOKEN_FILE_IN_CLUSTER "/var/run/secrets/kubernetes.io/serviceaccount/token"
#define K8S_TOKEN_BUF_SIZE 1024
#define K8S_AUTH_KEY "Authorization"
#define K8S_AUTH_VALUE_TEMPLATE "Bearer %s"
apiClient_t *g_k8sAPIConnector;
void create_a_pod(apiClient_t * apiClient)
{
char *namespace = "default";
@@ -54,57 +42,34 @@ void create_a_pod(apiClient_t * apiClient)
v1_pod_free(apod);
}
int loadK8sConfigInCluster(char *token, int token_buf_size)
{
static char fname[] = "loadK8sConfigInCluster()";
FILE *fp;
fp = fopen(K8S_TOKEN_FILE_IN_CLUSTER, "r");
if (fp == NULL) {
if (errno == ENOENT) {
printf("%s: The file %s does not exist.", fname, K8S_TOKEN_FILE_IN_CLUSTER);
return (-1);
} else {
printf("%s: Failed to open file %s.", fname, K8S_TOKEN_FILE_IN_CLUSTER);
return (-1);
}
}
while (fgets(token, token_buf_size, fp) != NULL) {
;
}
printf("%s\n", token);
fclose(fp);
return 0;
}
int init_k8s_connector(const char *token_out_of_cluster)
{
list_t *apiKeys;
apiKeys = list_create();
char *keyToken = strdup(K8S_AUTH_KEY);
char valueToken[K8S_TOKEN_BUF_SIZE];
memset(valueToken, 0, sizeof(valueToken));
sprintf(valueToken, K8S_AUTH_VALUE_TEMPLATE, token_out_of_cluster);
keyValuePair_t *keyPairToken = keyValuePair_create(keyToken, valueToken);
list_addElement(apiKeys, keyPairToken);
g_k8sAPIConnector = apiClient_create_with_base_path(K8S_APISERVER_BASEPATH, NULL, apiKeys);
}
int main(int argc, char *argv[])
{
init_k8s_connector(argv[1]);
create_a_pod(g_k8sAPIConnector);
int rc = 0;
char *baseName = NULL;
sslConfig_t *sslConfig = NULL;
list_t *apiKeys = NULL;
apiClient_t *k8sApiClient = NULL;
rc = load_kube_config(&baseName, &sslConfig, &apiKeys, NULL);
if (0 == rc) {
k8sApiClient = apiClient_create_with_base_path(baseName, sslConfig, apiKeys);
} else {
printf("Cannot load kubernetes configuration.\n");
return -1;
}
if (k8sApiClient) {
create_a_pod(k8sApiClient);
}
free_client_config(baseName, sslConfig, apiKeys);
baseName = NULL;
sslConfig = NULL;
apiKeys = NULL;
apiClient_free(k8sApiClient);
k8sApiClient = NULL;
apiClient_free(g_k8sAPIConnector);
}

4
examples/list_pod/Makefile
View File

@@ -1,5 +1,5 @@
INCLUDE:=-I../../kubernetes/include -I../../kubernetes/model -I../../kubernetes/api
LIBS:=-L../../kubernetes/build -lkubernetes -lcurl -lpthread -lssl -lz
INCLUDE:=-I../../kubernetes/include -I../../kubernetes/model -I../../kubernetes/api -I../../kubernetes/config
LIBS:=-L../../kubernetes/build -lkubernetes -lcurl -lyaml -lpthread -lssl -lz
CFLAGS:=-g
all:

97
examples/list_pod/main.c
View File

@@ -1,22 +1,10 @@
#include <kube_config.h>
#include <apiClient.h>
#include <CoreV1API.h>
#include <malloc.h>
#include <stdio.h>
#include <errno.h>
// kubectl proxy server
#define K8S_APISERVER_BASEPATH "http://localhost:8001"
// Alternately from within a Kubernetes cluster:
// #define K8S_APISERVER_BASEPATH https://your.server.here
#define K8S_TOKEN_FILE_IN_CLUSTER "/var/run/secrets/kubernetes.io/serviceaccount/token"
#define K8S_TOKEN_BUF_SIZE 1024
#define K8S_AUTH_KEY "Authorization"
#define K8S_AUTH_VALUE_TEMPLATE "Bearer %s"
apiClient_t *g_k8sAPIConnector;
void list_pod(apiClient_t * apiClient)
{
v1_pod_list_t *pod_list = NULL;
@@ -31,71 +19,48 @@ void list_pod(apiClient_t * apiClient)
0, /* timeoutSeconds */
0 /* watch */
);
printf("return code=%ld\n", apiClient->response_code);
printf("The return code of HTTP request=%ld\n", apiClient->response_code);
if (pod_list) {
printf("Get pod list.\n");
printf("Get pod list:\n");
listEntry_t *listEntry = NULL;
v1_pod_t *pod = NULL;
list_ForEach(listEntry, pod_list->items) {
pod = listEntry->data;
printf("pod name=%s\n", pod->metadata->name);
printf("\tThe pod name: %s\n", pod->metadata->name);
}
} else {
printf("Cannot list any pod.\n");
printf("Cannot get any pod.\n");
}
}
int loadK8sConfigInCluster(char *token, int token_buf_size)
{
static char fname[] = "loadK8sConfigInCluster()";
FILE *fp;
fp = fopen(K8S_TOKEN_FILE_IN_CLUSTER, "r");
if (fp == NULL) {
if (errno == ENOENT) {
printf("%s: The file %s does not exist.", fname, K8S_TOKEN_FILE_IN_CLUSTER);
return (-1);
} else {
printf("%s: Failed to open file %s.", fname, K8S_TOKEN_FILE_IN_CLUSTER);
return (-1);
}
}
while (fgets(token, token_buf_size, fp) != NULL) {
;
}
printf("%s\n", token);
fclose(fp);
return 0;
}
int init_k8s_connector(const char *token_out_of_cluster)
{
list_t *apiKeys;
apiKeys = list_create();
char *keyToken = strdup(K8S_AUTH_KEY);
char valueToken[K8S_TOKEN_BUF_SIZE];
memset(valueToken, 0, sizeof(valueToken));
sprintf(valueToken, K8S_AUTH_VALUE_TEMPLATE, token_out_of_cluster);
keyValuePair_t *keyPairToken = keyValuePair_create(keyToken, valueToken);
list_addElement(apiKeys, keyPairToken);
g_k8sAPIConnector = apiClient_create_with_base_path(K8S_APISERVER_BASEPATH, NULL, apiKeys);
}
int main(int argc, char *argv[])
{
init_k8s_connector(argv[1]);
int rc = 0;
list_pod(g_k8sAPIConnector);
char *baseName = NULL;
sslConfig_t *sslConfig = NULL;
list_t *apiKeys = NULL;
apiClient_t *k8sApiClient = NULL;
apiClient_free(g_k8sAPIConnector);
rc = load_kube_config(&baseName, &sslConfig, &apiKeys, NULL);
if (0 == rc) {
k8sApiClient = apiClient_create_with_base_path(baseName, sslConfig, apiKeys);
} else {
printf("Cannot load kubernetes configuration.\n");
return -1;
}
if (k8sApiClient) {
list_pod(k8sApiClient);
}
free_client_config(baseName, sslConfig, apiKeys);
baseName = NULL;
sslConfig = NULL;
apiKeys = NULL;
apiClient_free(k8sApiClient);
k8sApiClient = NULL;
return rc;
}