269 lines
7.9 KiB
C++
269 lines
7.9 KiB
C++
/*
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=========================================================================
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Copyright (c) 2023 MIND Software LLC. All Rights Reserved.
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This file is part of the Software-Defined Storage MIND UStor Project.
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For more information about this product, please visit https://mindsw.io
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or contact us directly at info@mindsw.io
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=========================================================================
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*/
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#include <ctype.h>
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#include "cli.h"
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#include "cli_pool_cfg.h"
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#include "cluster_client.h"
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#include "str_util.h"
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struct pool_changer_t
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{
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cli_tool_t *parent;
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// Required parameters (id/name)
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pool_id_t pool_id = 0;
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std::string pool_name;
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// Force removal
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bool force;
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// Pool configurator
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pool_configurator_t *cfg;
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int state = 0;
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cli_result_t result;
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// Config of pool to be modified
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pool_config_t *pool_config = NULL;
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// Tags
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json11::Json osd_tags_json;
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json11::Json primary_affinity_tags_json;
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// Updated pools
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json11::Json new_pools;
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// Expected pools mod revision
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uint64_t pools_mod_rev;
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bool is_done() { return state == 100; }
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void loop()
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{
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if (state == 1)
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goto resume_1;
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else if (state == 2)
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goto resume_2;
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else if (state == 3)
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goto resume_3;
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// Validate pool name/id
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// Get pool id by name (if name given)
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if (pool_name != "")
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{
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for (auto & pce: parent->cli->st_cli.pool_config)
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{
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if (pce.second.name == pool_name)
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{
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pool_id = pce.first;
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pool_config = &(pce.second);
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break;
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}
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}
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}
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// Otherwise, check if given pool id is valid
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else
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{
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// Set pool name from id (for easier logging)
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pool_name = "id " + std::to_string(pool_id);
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// Look-up pool id in pool_config
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auto pce = parent->cli->st_cli.pool_config.find(pool_id);
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if (pce != parent->cli->st_cli.pool_config.end())
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{
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pool_config = &(pce->second);
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}
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}
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// Need pool config to proceed
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if (!pool_config)
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{
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result = (cli_result_t){ .err = ENOENT, .text = "Pool "+pool_name+" does not exist" };
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state = 100;
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return;
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}
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// Validate pool parameters
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if (!cfg->validate(parent->cli->st_cli, pool_config, !force))
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{
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result = (cli_result_t){ .err = EINVAL, .text = cfg->get_error_string() + "\n" };
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state = 100;
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return;
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}
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// OSD tags
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if (cfg->osd_tags != "")
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{
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osd_tags_json = parent->parse_tags(cfg->osd_tags);
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}
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// Primary affinity tags
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if (cfg->primary_affinity_tags != "")
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{
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primary_affinity_tags_json = parent->parse_tags(cfg->primary_affinity_tags);
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}
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// Proceed to modifying the pool
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state = 1;
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resume_1:
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// Get pools from etcd
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parent->etcd_txn(json11::Json::object {
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{ "success", json11::Json::array {
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json11::Json::object {
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{ "request_range", json11::Json::object {
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{ "key", base64_encode(parent->cli->st_cli.etcd_prefix+"/config/pools") },
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} }
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},
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} },
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});
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state = 2;
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resume_2:
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if (parent->waiting > 0)
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return;
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if (parent->etcd_err.err)
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{
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result = parent->etcd_err;
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state = 100;
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return;
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}
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{
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// Parse received pools from etcd
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auto kv = parent->cli->st_cli.parse_etcd_kv(parent->etcd_result["responses"][0]["response_range"]["kvs"][0]);
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// Update pool
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auto pls = kv.value.object_items();
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auto p = pls[std::to_string(pool_id)].object_items();
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if (cfg->name != "")
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p["name"] = cfg->name;
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if (cfg->pg_size)
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p["pg_size"] = cfg->pg_size;
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if (cfg->pg_minsize)
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p["pg_minsize"] = cfg->pg_minsize;
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if (cfg->pg_count)
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p["pg_count"] = cfg->pg_count;
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if (cfg->failure_domain != "")
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p["failure_domain"] = cfg->failure_domain;
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if (cfg->max_osd_combinations)
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p["max_osd_combinations"] = cfg->max_osd_combinations;
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if (cfg->block_size)
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p["block_size"] = cfg->block_size;
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if (cfg->bitmap_granularity)
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p["bitmap_granularity"] = cfg->bitmap_granularity;
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if (cfg->immediate_commit != "")
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p["immediate_commit"] = cfg->immediate_commit;
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if (cfg->pg_stripe_size)
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p["pg_stripe_size"] = cfg->pg_stripe_size;
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if (cfg->root_node != "")
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p["root_node"] = cfg->root_node;
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if (cfg->scrub_interval != "")
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p["scrub_interval"] = cfg->scrub_interval;
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if (cfg->osd_tags != "")
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p["osd_tags"] = osd_tags_json;
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if (cfg->primary_affinity_tags != "")
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p["primary_affinity_tags"] = primary_affinity_tags_json;
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pls[std::to_string(pool_id)] = p;
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// Record updated pools
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new_pools = pls;
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// Expected pools mod revision
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pools_mod_rev = kv.mod_revision;
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}
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// Update pools in etcd
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parent->etcd_txn(json11::Json::object {
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{ "compare", json11::Json::array {
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json11::Json::object {
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{ "target", "MOD" },
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{ "key", base64_encode(parent->cli->st_cli.etcd_prefix+"/config/pools") },
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{ "result", "LESS" },
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{ "mod_revision", pools_mod_rev+1 },
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}
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} },
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{ "success", json11::Json::array {
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json11::Json::object {
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{ "request_put", json11::Json::object {
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{ "key", base64_encode(parent->cli->st_cli.etcd_prefix+"/config/pools") },
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{ "value", base64_encode(new_pools.dump()) },
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} },
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},
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} },
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});
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state = 3;
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resume_3:
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if (parent->waiting > 0)
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return;
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if (parent->etcd_err.err)
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{
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result = parent->etcd_err;
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state = 100;
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return;
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}
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// Successfully updated pool
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result = (cli_result_t){
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.err = 0,
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.text = "Pool "+pool_name+" updated",
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.data = new_pools
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};
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state = 100;
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}
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};
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std::function<bool(cli_result_t &)> cli_tool_t::start_pool_modify(json11::Json cfg)
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{
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auto pool_changer = new pool_changer_t();
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pool_changer->parent = this;
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// Pool name (or id) required
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if (!cfg["pool"].uint64_value() && cfg["pool"].as_string() == "")
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{
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return [](cli_result_t & result)
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{
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result = (cli_result_t){
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.err = EINVAL, .text = "Pool name or id must be given\n"
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};
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return true;
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};
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}
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pool_changer->pool_id = cfg["pool"].uint64_value();
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pool_changer->pool_name = pool_changer->pool_id ? "" : cfg["pool"].as_string();
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pool_changer->cfg = new pool_configurator_t();
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if (!pool_changer->cfg->parse(cfg, false))
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{
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std::string err = pool_changer->cfg->get_error_string();
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return [err](cli_result_t & result)
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{
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result = (cli_result_t){ .err = EINVAL, .text = err + "\n" };
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return true;
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};
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}
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pool_changer->force = !cfg["force"].is_null();
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return [pool_changer](cli_result_t & result)
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{
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pool_changer->loop();
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if (pool_changer->is_done())
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{
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result = pool_changer->result;
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delete pool_changer;
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return true;
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}
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return false;
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};
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}
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