forked from nlamirault/timonier
-
Notifications
You must be signed in to change notification settings - Fork 0
/
timonier-k8s.el
171 lines (138 loc) · 6.7 KB
/
timonier-k8s.el
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
;;; timonier-k8s.el --- Kubernetes API for Timonier
;; Copyright (C) 2016 Nicolas Lamirault <[email protected]>
;; 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.
;;; Commentary:
;;; Code:
(require 'cl-lib)
(require 'timonier-custom)
(require 'timonier-utils)
(require 'timonier-io)
(defmacro timonier--with-k8s (&rest body)
`(condition-case err
,@body
(error (message "[Kubernetes] Error with API: %s" err))))
(defun timonier--k8s-get-uri (uri)
"Retrieve the Kubernetes API complete url using the Kubernetes proxy.
`URI' is the api path."
(if timonier-k8s-proxy
(s-concat timonier-k8s-proxy "/" uri)
(error (signal 'timonier-k8s-error '("Kubernetes proxy unknown.")))))
(defun timonier--k8s-get-api ()
"Retrieve the Kubernetes API."
(timonier--perform-http-request
"GET" (timonier--k8s-get-uri "/api") '() 200))
(defmacro timonier--with-k8s-api-version (api-version &rest body)
"Retrieve Kubernetes API and set into `API-VERSION' and execute the forms in `BODY'."
(declare (indent 1) (debug t))
`(let* ((response (timonier--k8s-get-api))
(,api-version (elt (cdadr response) 0)))
(message "[k8s] API version: %s" ,api-version)
(if ,api-version
,@body
(message "[Timonier] Can't retrieve Kubernetes version: %s" response))))
(defun timonier--k8s-get-namespaces ()
"Retrieve namespaces from a Kubernetes cluster."
(timonier--with-k8s-api-version api-version
(timonier--perform-http-request
"GET" (timonier--k8s-get-uri (s-concat "/api/" api-version "/namespaces")) '() 200)))
(defun timonier--k8s-extract-namespace-informations (namespace)
"Extract commons informations from `NAMESPACE'.
Result is a property list. Keys are : 'name and 'status."
(let ((metadata (timonier--assoc-cdr 'metadata namespace))
(status (timonier--assoc-cdr 'status namespace))
properties)
(setq properties
(list 'name (timonier--assoc-cdr 'name metadata)
'status (timonier--assoc-cdr 'phase status)))
properties))
(defun timonier--k8s-get-pods ()
"Retrieve pods from a Kubernetes cluster."
(timonier--with-k8s-api-version api-version
(timonier--perform-http-request
"GET" (timonier--k8s-get-uri (s-concat "/api/" api-version "/pods")) '() 200)))
(defun timonier--k8s-extract-pod-informations (pod)
"Extract commons informations from `POD'.
Result is a property list. Keys are : 'name, 'namespace and 'status."
(let ((metadata (timonier--assoc-cdr 'metadata pod))
(status (timonier--assoc-cdr 'status pod))
properties)
(setq properties
(list 'name (timonier--assoc-cdr 'name metadata)
'namespace (timonier--assoc-cdr 'namespace metadata)
'cluster-ip (timonier--assoc-cdr 'podIP status)
'status (timonier--assoc-cdr 'phase status)))
properties))
(defun timonier--k8s-get-nodes ()
"Retrieve nodes from a Kubernetes cluster.."
(timonier--with-k8s-api-version api-version
(timonier--perform-http-request
"GET" (timonier--k8s-get-uri (s-concat "/api/" api-version "/nodes")) '() 200)))
(defun timonier--k8s-extract-node-informations (node)
"Extract commons informations from `NODE'.
Result is a property list. Keys are : 'name, 'labels and 'creation."
(let ((metadata (timonier--assoc-cdr 'metadata node))
(infos (timonier--assoc-cdr 'nodeInfo node))
properties)
(setq properties
(list 'name (timonier--assoc-cdr 'name metadata)
'labels (mapcar 'cdr (timonier--assoc-cdr 'labels metadata))
'creation (timonier--assoc-cdr 'creationTimestamp metadata)))
properties))
(defun timonier--k8s-extract-node-description (node)
"Extract complete description from `NODE'."
(let* ((metadata (timonier--assoc-cdr 'metadata node))
(spec (timonier--assoc-cdr 'spec node))
(status (timonier--assoc-cdr 'status node))
(addresses (timonier--assoc-cdr 'addresses status))
(node-info (timonier--assoc-cdr 'nodeInfo status))
properties)
(setq properties
(list 'name (timonier--assoc-cdr 'name metadata)
'labels (mapcar 'cdr (timonier--assoc-cdr 'labels metadata))
'creation (timonier--assoc-cdr 'creationTimestamp metadata)
'external-id (timonier--assoc-cdr 'externalID spec)
'addresses (mapcar (lambda (adr)
(mapcar 'cdr adr))
addresses)
'os-image (timonier--assoc-cdr 'osImage node-info)
'system-uuid (timonier--assoc-cdr 'systemUUID node-info)
'boot-id (timonier--assoc-cdr 'bootID node-info)
'kernel-version (timonier--assoc-cdr 'kernelVersion node-info)
'container-runtime (timonier--assoc-cdr 'containerRuntimeVersion node-info)
'kubelet-version (timonier--assoc-cdr 'kubeletVersion node-info)
'kubeproxy-version (timonier--assoc-cdr 'kubeProxyVersion node-info)
'os (timonier--assoc-cdr 'operatingSystem node-info)
'architecture (timonier--assoc-cdr 'architecture node-info)))
properties))
(defun timonier--k8s-get-services ()
"Retrieve services from a Kubernetes cluster."
(timonier--with-k8s-api-version api-version
(timonier--perform-http-request
"GET" (timonier--k8s-get-uri (s-concat "/api/" api-version "/services")) '() 200)))
(defun timonier--k8s-extract-service-informations (service)
"Extract commons informations from `SERVICE'.
Result is a property list. Keys are : 'name, 'namespace."
(let ((metadata (timonier--assoc-cdr 'metadata service))
(spec (timonier--assoc-cdr 'spec service))
properties)
(setq properties
(list 'name (timonier--assoc-cdr 'name metadata)
'namespace (timonier--assoc-cdr 'namespace metadata)
'labels (mapcar 'cdr (timonier--assoc-cdr 'labels metadata))
'ports (mapcar (lambda (port)
(mapcar 'cdr port))
(timonier--assoc-cdr 'ports spec))
'cluster-ip (timonier--assoc-cdr 'clusterIP spec)))
properties))
(provide 'timonier-k8s)
;;; timonier-k8s.el ends here