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©2018 Wantedly, Inc. PrometheusͰKubernetesͷߴ଎ΦʔτεέʔϧΛ࣮ݱͨ͠࿩ Cloud Native Meetup Tokyo #2 LT 1.Jun.2018 - Atsushi Tanaka @bgpat

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©2018 Wantedly, Inc. Atsushi Tanaka • @bgpat • Infrastructure Engineer
 at Wantedly, Inc. • Favorites: Kubernetes, Docker, Golang
 JavaScript, Vue.js

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©2018 Wantedly, Inc. w Φʔτεέʔϧ͕஗͍ w ଎͘εέʔϧ͢Δํ๏ w ϓϩμΫγϣϯͰ࢖ͬͯΈͨ ࿩͢͜ͱ

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©2018 Wantedly, Inc. ࠓ·Ͱ࢖͍ͬͯͨΦʔτεέʔϧ Horizontal Pod Autoscaler (HPA) + CPU $16ෛՙ͕ߴ͘ͳΔͱεέʔϧ

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©2018 Wantedly, Inc. ࠓ·Ͱ࢖͍ͬͯͨΦʔτεέʔϧ $16ෛՙ͕ߴ͘ͳΔͱεέʔϧ ϝϦοτ w ௕ظతͳΞΫηε਺ͷ૿Ճʹڧ͍ w ݹ͍όʔδϣϯͰ΋࢖͑Δ Horizontal Pod Autoscaler (HPA) + CPU

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©2018 Wantedly, Inc. ࠓ·Ͱ࢖͍ͬͯͨΦʔτεέʔϧ $16ෛՙ͕ߴ͘ͳΔͱεέʔϧ ϝϦοτ w ௕ظతͳΞΫηε਺ͷ૿Ճʹڧ͍ w ݹ͍όʔδϣϯͰ΋࢖͑Δ σϝϦοτ w ॠؒతͳεύΠΫʹऑ͍ Horizontal Pod Autoscaler (HPA) + CPU

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©2018 Wantedly, Inc.

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©2018 Wantedly, Inc.

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©2018 Wantedly, Inc.

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©2018 Wantedly, Inc. શવؒʹ߹͍ͬͯͳ͍

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©2018 Wantedly, Inc. ΋ͬͱૣ͘εέʔϧͯ͠΄͍͠

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©2018 Wantedly, Inc. εύΠΫʹڧ͍Φʔτεέʔϧ HPA + Custom Metrics ΞϓϦέʔγϣϯ͕ܾΊͨج४Ͱεέʔϧ w W͔Β࢖͑Δ w ྫ͑͹ʜϦΫΤετ਺ ίωΫγϣϯ਺ w Ξμϓλ͕ඞཁ

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©2018 Wantedly, Inc. εύΠΫʹڧ͍Φʔτεέʔϧ HPA + Custom Metrics ΞϓϦέʔγϣϯ͕ܾΊͨج४Ͱεέʔϧ w W͔Β࢖͑Δ w ྫ͑͹ʜϦΫΤετ਺ ίωΫγϣϯ਺ w Ξμϓλ͕ඞཁˠ,VCFSOFUFTʹϝτϦΫεΛૹΔͨΊͷαʔόʔ

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©2018 Wantedly, Inc. HPA + Custom Metrics k8s-prometheus-adapter 1SPNFUIFVT͕ऩूͨ͠ϝτϦΫεΛ,VCFSOFUFTʹૹͬͯ͘ΕΔαʔόʔ

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©2018 Wantedly, Inc. ͋ͱ͸ج४ʹ͢Δ஋ΛܾΊͯ
 Prometheus͕ಡΊΔϑΥʔϚοτͰग़ྗ͢Δ͚ͩ

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©2018 Wantedly, Inc. ͋ͱ͸ج४ʹ͢Δ஋ΛܾΊͯ
 Prometheus͕ಡΊΔϑΥʔϚοτͰग़ྗ͢Δ͚ͩ Ͱ͖Ε͹ΠϯϑϥϨΠϠʔͰղܾ͍ͨ͠

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©2018 Wantedly, Inc. εέʔϧͷ൑ఆج४ /HJOYͷTUVC@TUBUVT location /basic_status { stub_status; } Active connections: 291 server accepts handled requests 16630948 16630948 31070465 Reading: 6 Writing: 179 Waiting: 106

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©2018 Wantedly, Inc. εέʔϧͷ൑ఆج४ /HJOYͷTUVC@TUBUVT location /basic_status { stub_status; } Active connections: 291 server accepts handled requests 16630948 16630948 31070465 Reading: 6 Writing: 179 Waiting: 106 ଴ͪίωΫγϣϯ਺Λ࢖͏

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©2018 Wantedly, Inc. εέʔϧͷ൑ఆج४ TUVC@TUBUVTΛFYQPSUFSͷܗࣜʹ͍ͨ͠ # HELP nginx_connections_current Number of connections currently processed by nginx # TYPE nginx_connections_current gauge nginx_connections_current{state="active"} 2 nginx_connections_current{state="reading"} 0 nginx_connections_current{state="waiting"} 1 nginx_connections_current{state="writing"} 1

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©2018 Wantedly, Inc. ,VCFSOFUFST
 "1*4FSWFS LTQSPNFUIFVTBEBQUFS 1SPNFUIFVT )PSJ[POUBM 1PE "VUPTDBMFS %FQMPZNFOU 3FQMJDB4FU 1PE 1PE 1PE OHJOY@FYQPSUFS /HJOY
 TUVC@TUBUVT

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©2018 Wantedly, Inc. ݁Ռ w සൟʹεέʔϧ͢ΔΑ͏ʹͳͬͨ w $16ෛՙ͕҆ఆͨ͠ w Ξϥʔτ͕໐Βͳ͘ͳͬͨ

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©2018 Wantedly, Inc. ߴ଎Φʔτεέʔϧ͕࣮ݱͰ͖ͨ

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©2018 Wantedly, Inc. https://github.com/bgpat/k8s-hpa-example