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Kong / kong Public

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feat(core/dns): new dns client library#12305

Merged

dndx merged 126 commits intomasterKong/kong:masterfrom refactor/dns_clientKong/kong:refactor/dns_clientCopy head branch name to clipboard

Jul 16, 2024

+4,225-37

Conversation Commits126 (126)Checks Files changed

Commits

Commits on Jul 11, 2024

refactor(dns): new dns client library
chobits
committed
add files to kong-3.7.0-0.rockspec
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30-new-dns-client/02-old_client_spec.lua: use CI nameserver instead
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committed
return last answer error if no available answers
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set _G.busted_legacy_dns_client for original 21-dns-client/ tests
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committed
chores: better comment
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committed
add changelog
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automatically refresh stale-but-in-use records after @stale_refresh_interval
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committed
revert "automatically refresh stale-but-in-use records after @stale_refresh_interval"
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add kong_dns_cache{_miss} shared dict into templates/nginx_kong.lua
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only purge cache for test cases
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committed
use kong.worker_events instead of mlcache shm based ipc
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committed
remove debug log for @tries
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committed
support req_dyn_hook.run_hooks
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committed
supports __tostring of @tries table (error list)
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committed
coding style: use a 2-space indentation and localized some variables
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committed
coding style: change table.insert to table_insert
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committed
fix test case of stale updating task
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committed
fix bug: should insert nil value as missed data into mlcache
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committed
simplify injecting resolver.query logic in tests 30-new-dns-client/*
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optimize cache inserting logic to avoid unnecessary IPC to broadcast invalidation events
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avoid running callback from local worker's events and add tests for IPC
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committed
coding style fix and keep the error string consistent with the previous version
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fix shared_dict shm size
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fix typo: CACHE_ONLY_MISS_ANSWERS -> CACHE_ONLY_ANSWERS
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committed
fix test case: 01-request-debug_spec.lua: dns cache hit
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copy the provided opts table with new function copy_options
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create timer using a static function instead of recreating closures
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add constant LONG_LASTING_TTL for 10 years ttl value
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add comment for maximum TTL value: 0xffffffff
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fix coding styles and add more comments
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add comment for sleep(0.2) in 04-round_robin_spec.lua
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committed
coding style: removed unnecessary blank line in 04-round_robin_spec.lua
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committed
fixed flakiness of stale updating test case in 03-old_client_cache_spec.lua
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committed
fix error message and update test case titles
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committed
fix bug that stale records will be not updated if querying nameserver failed
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committed
compatible with original dns client: skip the SRV record pointing to itself
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committed
revert shm_miss feature, which makes source code more complex
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committed
support admin API "/dns" to get statistics
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committed
fix lint error
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committed
complete the release file: refactor_dns_client.yml
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chore: assign TYPE_LAST to _M.TYPE_LAST instead of -1
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Update release file

chobits
and
windmgc
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fix text of dns_no_sync option in refactor_dns_client.yml
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process the scenario of timeout=0 in /etc/resolv.conf
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committed
chores(*): fix coding style; add comments; make constant records readonly
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committed
add a comment to explain of the concurrenct control of asynchronous tasks
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fixed lock_timeout: r:query() has two IO operations send() & receive()
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committed
automatically refresh stale-but-in-use records every 60s triggered by the upper caller
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committed
added kong/resty/dns_client/README.md
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change statistics API path from /dns to /status/dns
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d11y: add key-value "query_last_time": "<unixtime> <duration>" into statistics
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committed
fixed markdown format of kong/resty/dns_client/README.md
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fix format for kong/resty/dns_client/README.md
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add debug logs
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committed
fix refactor_dns_client.yml to make it more user-friendly
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committed
chore: use string_lower instead of <var>:lower() for debugging
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committed
chores: refactor variable names
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committed
fixed coding style(add spaces) and fix resolv.options.timeout checking
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committed
move ip address answers generating logic into cache:get callback

chobits
and
bungle
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modify some table_insert to "t[i] = v" and check order instead of check search_types
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use empty table for opts as default value in _M.new()
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perf: return body directly instead of creating a local variable

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and
bungle
committed
fix status code to 501 if dns stats not implemented for API "/status/dns"

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and
bungle
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perf: convert variables (localhosts/empty_answers) to constants
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perf: firstly check for tailing dot in is_fqdn

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and
Tieske
committed
chore: better comment for parseResolvConf-TODO

chobits
and
Tieske
committed
ensure valid_ttl doesn't exceed maximum ttl 0xffffffff

chobits
and
bungle
committed
chore: rename get_round_robin_answers to get_next_round_robin_answers
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perf: dont use table as input parameters for APIs and add a new API resolve_address
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README.md: add apis resolve_address and and fix format
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committed
perf: convert some variables local constants
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committed
improve readability: list _M.TYPE_XXX value directly

chobits
and
Tieske
committed
refactor function name and fix lint issue
chobits
committed
refactor function names for better test
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committed
chores: do not check for r.destroy before using it
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committed
1
chobits
committed
move library path to kong/dns
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committed
mark it TODO to convert ipc to a module contant
chobits
committed
use do-end block to wrap init_hosts and insert_answer_into_cache
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committed
add comments and test cases for API utils.ipv6_bracket
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committed
remove unused kong.tools.utils requirement in test cases
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committed
add comments for cwid checking and hosts
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chores: fix some coding styles
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committed
Update kong/dns/README.md: remove the word

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and
Tieske
committed
remove use of readonly function for cached DNS records
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committed
fix coding style: localize SWRR logic
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re-insert hosts entries to cache if it is evicted
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committed
chores: remove = aligning
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committed
remove empty table creation in hot code paths
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committed
fix lint error: resolve_names -> resolved_names
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committed
chores: fix a couple of missing localizations
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committed
fix opts initialization in _M.init()
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committed
remove local variable options for r:query
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committed
avoid checking for ngx.ctx.has_timing in recursion
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committed
use legacy_dns_client switch to check if we need to reply 501 in /status/dns
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committed
added debug log for EE test cases
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committed
chores: fixed lines exceeding 80 characters by a large margin
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committed
compatible with the modified req dyc debug API
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committed
remove the logic of CNAME and recursive detection
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committed
remove LAST type logic
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committed
only use error_ttl, remove empty_ttl logic
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committed
fix type in readme.md
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committed
change paths of test cases directory
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committed
set legacy_dns_client off for some cases
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committed
update changelog yml
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committed
disable additional section & add tests
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committed
further simplify code: either query A/AAAA or SRV
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committed
revert pathes modification for conflicts
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committed
fix health check tests for SRV
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committed
fix /status/dns test cases
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committed
chores(dns): fixed coding style
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committed
chores(dns): fixed coding style: MT -> _MT
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committed
@chobits chores(dns): fixed coding style: remove () from srv port

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chronolaw
committed
chores(dns): fix coding style

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and
ADD-SP
committed
chores(test): fix typo, return ttl instead of tries
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committed
fix conflicts: remove modification in test: 01-instrumentations_spec.lua
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committed
fix conflicts and its tests
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chores(dns/README.md): fixed types
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committed
perf(dns): reduce table creation
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committed

Commits on Jul 12, 2024

fixed coding styles: add more blanks and rename some variables
chobits
committed
add option:random_resolver and fixed docs
chobits
committed
change seperator from : to | in the output of API /status/dns
chobits
committed
add a TODO for more structured tries
chobits
committed
doc: perf test for memory consumption
chobits
committed
stale_ttl: fix expired time caculation
chobits
committed

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