summaryrefslogtreecommitdiffstats
path: root/src/registry/registry_init.c
blob: b98c04beaa7c87f2da0f64a154da733e4f45f584 (plain)
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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
// SPDX-License-Identifier: GPL-3.0-or-later

#include "daemon/common.h"
#include "registry_internals.h"

void registry_db_stats(void) {
    size_t persons = 0;
    size_t persons_urls = 0;
    size_t max_urls_per_person = 0;

    REGISTRY_PERSON *p;
    dfe_start_read(registry.persons, p) {
        persons++;
        size_t urls = 0;
        for(REGISTRY_PERSON_URL *pu = p->person_urls ; pu ;pu = pu->next)
            urls++;

        if(urls > max_urls_per_person)
            max_urls_per_person = urls;

        persons_urls += urls;
    }
    dfe_done(p);

    size_t machines = 0;
    size_t machines_urls = 0;
    size_t max_urls_per_machine = 0;

    REGISTRY_MACHINE *m;
    dfe_start_read(registry.machines, m) {
                machines++;
                size_t urls = 0;
                for(REGISTRY_MACHINE_URL *mu = m->machine_urls ; mu ;mu = mu->next)
                    urls++;

                if(urls > max_urls_per_machine)
                    max_urls_per_machine = urls;

                machines_urls += urls;
            }
    dfe_done(m);

    netdata_log_info("REGISTRY: persons %zu, person_urls %zu, max_urls_per_person %zu, "
                     "machines %zu, machine_urls %zu, max_urls_per_machine %zu",
                     persons, persons_urls, max_urls_per_person,
                     machines, machines_urls, max_urls_per_machine);
}

void registry_generate_curl_urls(void) {
    FILE *fp = fopen("/tmp/registry.curl", "w+");
    if (unlikely(!fp))
        return;

    REGISTRY_PERSON *p;
    dfe_start_read(registry.persons, p) {
        for(REGISTRY_PERSON_URL *pu = p->person_urls ; pu ;pu = pu->next) {
            fprintf(fp, "do_curl '%s' '%s' '%s'\n", p->guid, pu->machine->guid, string2str(pu->url));
        }
    }
    dfe_done(p);

    fclose(fp);
}

int registry_init(void) {
    char filename[FILENAME_MAX + 1];

    // registry enabled?
    if(web_server_mode != WEB_SERVER_MODE_NONE) {
        registry.enabled = config_get_boolean(CONFIG_SECTION_REGISTRY, "enabled", 0);
    }
    else {
        netdata_log_info("Registry is disabled - use the central netdata");
        config_set_boolean(CONFIG_SECTION_REGISTRY, "enabled", 0);
        registry.enabled = 0;
    }

    // path names
    snprintfz(filename, FILENAME_MAX, "%s/registry", netdata_configured_varlib_dir);
    registry.pathname = config_get(CONFIG_SECTION_DIRECTORIES, "registry", filename);
    if(mkdir(registry.pathname, 0770) == -1 && errno != EEXIST)
        fatal("Cannot create directory '%s'.", registry.pathname);

    // filenames
    snprintfz(filename, FILENAME_MAX, "%s/netdata.public.unique.id", registry.pathname);
    registry.machine_guid_filename = config_get(CONFIG_SECTION_REGISTRY, "netdata unique id file", filename);

    snprintfz(filename, FILENAME_MAX, "%s/registry.db", registry.pathname);
    registry.db_filename = config_get(CONFIG_SECTION_REGISTRY, "registry db file", filename);

    snprintfz(filename, FILENAME_MAX, "%s/registry-log.db", registry.pathname);
    registry.log_filename = config_get(CONFIG_SECTION_REGISTRY, "registry log file", filename);

    // configuration options
    registry.save_registry_every_entries = (unsigned long long)config_get_number(CONFIG_SECTION_REGISTRY, "registry save db every new entries", 1000000);
    registry.persons_expiration = config_get_duration_days(CONFIG_SECTION_REGISTRY, "registry expire idle persons", 365) * 86400;
    registry.registry_domain = config_get(CONFIG_SECTION_REGISTRY, "registry domain", "");
    registry.registry_to_announce = config_get(CONFIG_SECTION_REGISTRY, "registry to announce", "https://registry.my-netdata.io");
    registry.hostname = config_get(CONFIG_SECTION_REGISTRY, "registry hostname", netdata_configured_hostname);
    registry.verify_cookies_redirects = config_get_boolean(CONFIG_SECTION_REGISTRY, "verify browser cookies support", 1);
    registry.enable_cookies_samesite_secure = config_get_boolean(CONFIG_SECTION_REGISTRY, "enable cookies SameSite and Secure", 1);

    registry_update_cloud_base_url();
    nd_setenv("NETDATA_REGISTRY_HOSTNAME", registry.hostname, 1);
    nd_setenv("NETDATA_REGISTRY_URL", registry.registry_to_announce, 1);

    registry.max_url_length = (size_t)config_get_number(CONFIG_SECTION_REGISTRY, "max URL length", 1024);
    if(registry.max_url_length < 10) {
        registry.max_url_length = 10;
        config_set_number(CONFIG_SECTION_REGISTRY, "max URL length", (long long)registry.max_url_length);
    }

    registry.max_name_length = (size_t)config_get_number(CONFIG_SECTION_REGISTRY, "max URL name length", 50);
    if(registry.max_name_length < 10) {
        registry.max_name_length = 10;
        config_set_number(CONFIG_SECTION_REGISTRY, "max URL name length", (long long)registry.max_name_length);
    }

    bool use_mmap = config_get_boolean(CONFIG_SECTION_REGISTRY, "use mmap", false);

    // initialize entries counters
    registry.persons_count = 0;
    registry.machines_count = 0;
    registry.usages_count = 0;
    registry.persons_urls_count = 0;
    registry.machines_urls_count = 0;

    // initialize locks
    netdata_mutex_init(&registry.lock);

    // load the registry database
    if(registry.enabled) {
        // create dictionaries
        registry.persons = dictionary_create(REGISTRY_DICTIONARY_OPTIONS);
        registry.machines = dictionary_create(REGISTRY_DICTIONARY_OPTIONS);

        // initialize the allocators

        size_t min_page_size = 4 * 1024;
        size_t max_page_size = 1024 * 1024;

        if(use_mmap) {
            min_page_size = 100 * 1024 * 1024;
            max_page_size = 512 * 1024 * 1024;
        }

        registry.persons_aral = aral_create("registry_persons", sizeof(REGISTRY_PERSON),
                                            min_page_size / sizeof(REGISTRY_PERSON), max_page_size,
                                            &registry.aral_stats,
                                            "registry_persons",
                                            &netdata_configured_cache_dir,
                                            use_mmap, true);

        registry.machines_aral = aral_create("registry_machines", sizeof(REGISTRY_MACHINE),
                                             min_page_size / sizeof(REGISTRY_MACHINE), max_page_size,
                                             &registry.aral_stats,
                                             "registry_machines",
                                             &netdata_configured_cache_dir,
                                             use_mmap, true);

        registry.person_urls_aral = aral_create("registry_person_urls", sizeof(REGISTRY_PERSON_URL),
                                                min_page_size / sizeof(REGISTRY_PERSON_URL), max_page_size,
                                                &registry.aral_stats,
                                                "registry_person_urls",
                                                &netdata_configured_cache_dir,
                                                use_mmap, true);

        registry.machine_urls_aral = aral_create("registry_machine_urls", sizeof(REGISTRY_MACHINE_URL),
                                                 min_page_size / sizeof(REGISTRY_MACHINE_URL), max_page_size,
                                                 &registry.aral_stats,
                                                 "registry_machine_urls",
                                                 &netdata_configured_cache_dir,
                                                 use_mmap, true);

        registry_log_open();
        registry_db_load();
        registry_log_load();

        if(unlikely(registry_db_should_be_saved()))
            registry_db_save();

//        registry_db_stats();
//        registry_generate_curl_urls();
//        exit(0);
    }

    return 0;
}

static int machine_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *entry, void *data __maybe_unused) {
    REGISTRY_MACHINE *m = (REGISTRY_MACHINE *)entry;

    int count = 0;

    while(m->machine_urls) {
        registry_machine_url_unlink_from_machine_and_free(m, m->machine_urls);
        count++;
    }

    aral_freez(registry.machines_aral, m);

    return count + 1;
}

static int registry_person_del_callback(const DICTIONARY_ITEM *item __maybe_unused, void *entry, void *d __maybe_unused) {
    REGISTRY_PERSON *p = (REGISTRY_PERSON *)entry;

    netdata_log_debug(D_REGISTRY, "Registry: registry_person_del('%s'): deleting person", p->guid);

    while(p->person_urls)
        registry_person_unlink_from_url(p, (REGISTRY_PERSON_URL *)p->person_urls);

    //debug(D_REGISTRY, "Registry: deleting person '%s' from persons registry", p->guid);
    //dictionary_del(registry.persons, p->guid);

    netdata_log_debug(D_REGISTRY, "Registry: freeing person '%s'", p->guid);
    aral_freez(registry.persons_aral, p);

    return 1;
}

void registry_free(void) {
    if(!registry.enabled) return;
    registry.enabled = false;

    netdata_log_debug(D_REGISTRY, "Registry: destroying persons dictionary");
    dictionary_walkthrough_read(registry.persons, registry_person_del_callback, NULL);
    dictionary_destroy(registry.persons);
    registry.persons = NULL;

    netdata_log_debug(D_REGISTRY, "Registry: destroying machines dictionary");
    dictionary_walkthrough_read(registry.machines, machine_delete_callback, NULL);
    dictionary_destroy(registry.machines);
    registry.machines = NULL;

    aral_destroy(registry.persons_aral);
    aral_destroy(registry.machines_aral);
    aral_destroy(registry.person_urls_aral);
    aral_destroy(registry.machine_urls_aral);
    registry.persons_aral = NULL;
    registry.machines_aral = NULL;
    registry.person_urls_aral = NULL;
    registry.machine_urls_aral = NULL;
}