diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index 8893e6ccef5..dd1a5e65ba4 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -38,7 +38,7 @@ jobs:
         uses: golangci/golangci-lint-action@v3
         with:
           # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
-          version: v1.51.2
+          version: v1.55.2
 
           # Give the job more time to execute.
           # Regarding `--whole-files`, the linter is supposed to support linting of changed a patch only but,
diff --git a/.go-version b/.go-version
index 3b9e4a0c187..ce2dd53570b 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.20.12
+1.21.5
diff --git a/.golangci.yml b/.golangci.yml
index e0fb589b9c9..43b0bb6cb7b 100755
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -102,7 +102,7 @@ linters-settings:
 
   gosimple:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.20.12"
+    go: "1.21.5"
 
   nakedret:
     # make an issue if func has more lines of code than this setting and it has naked returns; default is 30
@@ -120,19 +120,19 @@ linters-settings:
 
   staticcheck:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.20.12"
+    go: "1.21.5"
     checks: ["all"]
 
   stylecheck:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.20.12"
+    go: "1.21.5"
     # Disabled:
     # ST1005: error strings should not be capitalized
     checks: ["all", "-ST1005"]
 
   unused:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.20.12"
+    go: "1.21.5"
 
   gosec:
     excludes:
diff --git a/CHANGELOG.next.asciidoc b/CHANGELOG.next.asciidoc
index 2fd259f5e80..98106ecbd8e 100644
--- a/CHANGELOG.next.asciidoc
+++ b/CHANGELOG.next.asciidoc
@@ -59,8 +59,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 
 *Affecting all Beats*
 
-
-- Upgrade to Go 1.20.12. {pull}37352[37352]
+- Upgrade to Go 1.21.5. {pull}37550[37550]
 
 *Auditbeat*
 
diff --git a/auditbeat/Dockerfile b/auditbeat/Dockerfile
index 742041d66af..a43c12d013d 100644
--- a/auditbeat/Dockerfile
+++ b/auditbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/dev-tools/kubernetes/filebeat/Dockerfile.debug b/dev-tools/kubernetes/filebeat/Dockerfile.debug
index 2aec33e3459..71311ea3b26 100644
--- a/dev-tools/kubernetes/filebeat/Dockerfile.debug
+++ b/dev-tools/kubernetes/filebeat/Dockerfile.debug
@@ -1,4 +1,4 @@
-FROM golang:1.20.12 as builder
+FROM golang:1.21.5 as builder
 
 ENV PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/go/bin:/usr/local/go/bin
 
diff --git a/dev-tools/kubernetes/heartbeat/Dockerfile.debug b/dev-tools/kubernetes/heartbeat/Dockerfile.debug
index a807186d51f..5e9bb25e65e 100644
--- a/dev-tools/kubernetes/heartbeat/Dockerfile.debug
+++ b/dev-tools/kubernetes/heartbeat/Dockerfile.debug
@@ -1,4 +1,4 @@
-FROM golang:1.20.12 as builder
+FROM golang:1.21.5 as builder
 
 ENV PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/go/bin:/usr/local/go/bin
 
diff --git a/dev-tools/kubernetes/metricbeat/Dockerfile.debug b/dev-tools/kubernetes/metricbeat/Dockerfile.debug
index 2e279500338..71adf4f66d7 100644
--- a/dev-tools/kubernetes/metricbeat/Dockerfile.debug
+++ b/dev-tools/kubernetes/metricbeat/Dockerfile.debug
@@ -1,4 +1,4 @@
-FROM golang:1.20.12 as builder
+FROM golang:1.21.5 as builder
 
 ENV PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/go/bin:/usr/local/go/bin
 
diff --git a/filebeat/Dockerfile b/filebeat/Dockerfile
index c67d6a476e8..9382e935ebf 100644
--- a/filebeat/Dockerfile
+++ b/filebeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/go.mod b/go.mod
index 40570bd517d..c69643bdd7e 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/elastic/beats/v7
 
-go 1.20
+go 1.21
 
 require (
 	cloud.google.com/go/bigquery v1.52.0
diff --git a/go.sum b/go.sum
index 514b0d43cfd..7519d33edc5 100644
--- a/go.sum
+++ b/go.sum
@@ -22,12 +22,15 @@ cloud.google.com/go/compute v1.21.0/go.mod h1:4tCnrn48xsqlwSAiLf1HXMQk8CONslYbdi
 cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
 cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
 cloud.google.com/go/datacatalog v1.14.1 h1:cFPBt8V5V2T3mu/96tc4nhcMB+5cYcpwjBfn79bZDI8=
+cloud.google.com/go/datacatalog v1.14.1/go.mod h1:d2CevwTG4yedZilwe+v3E3ZBDRMobQfSG/a6cCCN5R4=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
 cloud.google.com/go/iam v1.1.1 h1:lW7fzj15aVIXYHREOqjRBV9PsH0Z6u8Y46a1YGvQP4Y=
 cloud.google.com/go/iam v1.1.1/go.mod h1:A5avdyVL2tCppe4unb0951eI9jreack+RJ0/d+KUZOU=
 cloud.google.com/go/kms v1.12.1 h1:xZmZuwy2cwzsocmKDOPu4BL7umg8QXagQx6fKVmf45U=
+cloud.google.com/go/kms v1.12.1/go.mod h1:c9J991h5DTl+kg7gi3MYomh12YEENGrf48ee/N/2CDM=
 cloud.google.com/go/longrunning v0.5.1 h1:Fr7TXftcqTudoyRJa113hyaqlGdiBQkp0Gq7tErFDWI=
+cloud.google.com/go/longrunning v0.5.1/go.mod h1:spvimkwdz6SPWKEt/XBij79E9fiTkHSQl/fRUUQJYJc=
 cloud.google.com/go/monitoring v1.15.1 h1:65JhLMd+JiYnXr6j5Z63dUYCuOg770p8a/VC+gil/58=
 cloud.google.com/go/monitoring v1.15.1/go.mod h1:lADlSAlFdbqQuwwpaImhsJXu1QSdd3ojypXrFSMr2rM=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
@@ -39,6 +42,7 @@ cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiy
 cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
 cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
 cloud.google.com/go/storage v1.30.1 h1:uOdMxAs8HExqBlnLtnQyP0YkvbiDpdGShGKtx6U/oNM=
+cloud.google.com/go/storage v1.30.1/go.mod h1:NfxhC0UJE1aXSx7CIIbCf7y9HKT7BiccwkR7+P7gN8E=
 code.cloudfoundry.org/go-diodes v0.0.0-20190809170250-f77fb823c7ee h1:iAAPf9s7/+BIiGf+RjgcXLm3NoZaLIJsBXJuUa63Lx8=
 code.cloudfoundry.org/go-diodes v0.0.0-20190809170250-f77fb823c7ee/go.mod h1:Jzi+ccHgo/V/PLQUaQ6hnZcC1c4BS790gx21LRRui4g=
 code.cloudfoundry.org/go-loggregator v7.4.0+incompatible h1:KqZYloMQWM5Zg/BQKunOIA4OODh7djZbk48qqbowNFI=
@@ -104,6 +108,7 @@ github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBp
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/JohnCGriffin/overflow v0.0.0-20211019200055-46fa312c352c h1:RGWPOewvKIROun94nF7v2cua9qP+thov/7M50KEoeSU=
+github.com/JohnCGriffin/overflow v0.0.0-20211019200055-46fa312c352c/go.mod h1:X0CRv0ky0k6m906ixxpzmDRLvX58TFUKS2eePweuyxk=
 github.com/Masterminds/semver v1.4.2 h1:WBLTQ37jOCzSLtXNdoo8bNM8876KhNqOKvrlGITgsTc=
 github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/Microsoft/hcsshim v0.8.7/go.mod h1:OHd7sQqRFrYd3RmSgbgji+ctCwkbq2wbEYNSzOYtcBQ=
@@ -481,6 +486,7 @@ github.com/google/licenseclassifier/v2 v2.0.0-alpha.1/go.mod h1:YAgBGGTeNDMU+WfI
 github.com/google/martian v2.1.0+incompatible h1:/CP5g8u/VJHijgedC/Legn3BAbAaWPgecwXBIDzw5no=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/martian/v3 v3.3.2 h1:IqNFLAmvJOgVlpdEBiQbDc2EwKW77amAycfTuWKdfvw=
+github.com/google/martian/v3 v3.3.2/go.mod h1:oBOf6HBosgwRXnUGWUB05QECsc6uvmMiJ3+6W4l/CUk=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
@@ -790,6 +796,7 @@ github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6L
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
@@ -898,6 +905,7 @@ github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5t
 github.com/yuin/gopher-lua v0.0.0-20170403160031-b402f3114ec7 h1:0gYLpmzecnaDCoeWxSfEJ7J1b6B/67+NV++4HKQXx+Y=
 github.com/yuin/gopher-lua v0.0.0-20170403160031-b402f3114ec7/go.mod h1:aEV29XrmTYFr3CiRxZeGHpkvbwq+prZduBqMaascyCU=
 github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
+github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
 github.com/zeebo/xxh3 v1.0.2 h1:xZmwmqxHZA8AI603jOQ0tMqmBr9lPeFwGg6d+xy9DC0=
 github.com/zeebo/xxh3 v1.0.2/go.mod h1:5NWz9Sef7zIDm2JHfFlcQvNekmcEl9ekUZQQKCYaDcA=
 go.elastic.co/apm v1.7.2/go.mod h1:tCw6CkOJgkWnzEthFN9HUP1uL3Gjc/Ur6m7gRPLaoH0=
@@ -930,6 +938,7 @@ go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/goleak v1.0.0/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
 go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/goleak v1.1.12 h1:gZAh5/EyT/HQwlpkCy6wTpqfH9H8Lz8zbm3dZh+OyzA=
+go.uber.org/goleak v1.1.12/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
 go.uber.org/multierr v1.8.0 h1:dg6GjLku4EH+249NNmoIciG9N/jURbDG+pFlTkhzIC8=
@@ -966,6 +975,7 @@ golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u0
 golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
 golang.org/x/exp v0.0.0-20220827204233-334a2380cb91 h1:tnebWN09GYg9OLPss1KXj8txwZc6X6uMr6VFdcGNbHw=
+golang.org/x/exp v0.0.0-20220827204233-334a2380cb91/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -1189,6 +1199,7 @@ golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 h1:H2TDz8ibqkAF6YGhCdN3jS9O0/s90v0rJh3X/OLHEUk=
 golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
 gonum.org/v1/gonum v0.11.0 h1:f1IJhK4Km5tBJmaiJXtk/PkL4cdVX6J+tGiM187uT5E=
+gonum.org/v1/gonum v0.11.0/go.mod h1:fSG4YDCxxUZQJ7rKsQrj0gMOg00Il0Z96/qMA4bVQhA=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
diff --git a/heartbeat/Dockerfile b/heartbeat/Dockerfile
index e3e4a8bf989..db338a4089c 100644
--- a/heartbeat/Dockerfile
+++ b/heartbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/libbeat/Dockerfile b/libbeat/Dockerfile
index 56b65e78401..9fa24e893b7 100644
--- a/libbeat/Dockerfile
+++ b/libbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/libbeat/docs/version.asciidoc b/libbeat/docs/version.asciidoc
index e850e8fc1ad..8db4c5810a3 100644
--- a/libbeat/docs/version.asciidoc
+++ b/libbeat/docs/version.asciidoc
@@ -1,6 +1,6 @@
 :stack-version: 7.17.16
 :doc-branch: 7.17
-:go-version: 1.20.12
+:go-version: 1.21.5
 :release-state: unreleased
 :python: 3.7
 :docker: 1.12
diff --git a/metricbeat/Dockerfile b/metricbeat/Dockerfile
index c0e2c30aaa9..247c536536d 100644
--- a/metricbeat/Dockerfile
+++ b/metricbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt update \
diff --git a/metricbeat/module/http/_meta/Dockerfile b/metricbeat/module/http/_meta/Dockerfile
index bf7a9fc931e..1b08a63aab5 100644
--- a/metricbeat/module/http/_meta/Dockerfile
+++ b/metricbeat/module/http/_meta/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 COPY test/main.go main.go
 
diff --git a/metricbeat/module/nats/_meta/Dockerfile b/metricbeat/module/nats/_meta/Dockerfile
index 44fdc695748..b3f2a06d825 100644
--- a/metricbeat/module/nats/_meta/Dockerfile
+++ b/metricbeat/module/nats/_meta/Dockerfile
@@ -2,7 +2,7 @@ ARG NATS_VERSION=2.0.4
 FROM nats:$NATS_VERSION
 
 # build stage
-FROM golang:1.20.12 AS build-env
+FROM golang:1.21.5 AS build-env
 RUN apt-get install git mercurial gcc
 RUN git clone https://github.com/nats-io/nats.go.git /nats-go
 RUN cd /nats-go/examples/nats-bench && git checkout tags/v1.10.0 && go build .
diff --git a/metricbeat/module/vsphere/_meta/Dockerfile b/metricbeat/module/vsphere/_meta/Dockerfile
index 993137b89f3..601d8317ac2 100644
--- a/metricbeat/module/vsphere/_meta/Dockerfile
+++ b/metricbeat/module/vsphere/_meta/Dockerfile
@@ -1,5 +1,5 @@
 ARG VSPHERE_GOLANG_VERSION
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN apt-get install curl git
 RUN go install github.com/vmware/govmomi/vcsim@v0.30.4
diff --git a/packetbeat/Dockerfile b/packetbeat/Dockerfile
index fe13ef47b61..d3718ecfcdb 100644
--- a/packetbeat/Dockerfile
+++ b/packetbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/x-pack/functionbeat/Dockerfile b/x-pack/functionbeat/Dockerfile
index 662b27d669d..196dd8d5f23 100644
--- a/x-pack/functionbeat/Dockerfile
+++ b/x-pack/functionbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/x-pack/libbeat/Dockerfile b/x-pack/libbeat/Dockerfile
index 65e083160c7..8d8c3c5bdee 100644
--- a/x-pack/libbeat/Dockerfile
+++ b/x-pack/libbeat/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.12
+FROM golang:1.21.5
 
 RUN \
     apt-get update \
diff --git a/x-pack/metricbeat/module/stan/_meta/Dockerfile b/x-pack/metricbeat/module/stan/_meta/Dockerfile
index 92ee1d83457..40162f9181b 100644
--- a/x-pack/metricbeat/module/stan/_meta/Dockerfile
+++ b/x-pack/metricbeat/module/stan/_meta/Dockerfile
@@ -2,7 +2,7 @@ ARG STAN_VERSION=0.15.1
 FROM nats-streaming:$STAN_VERSION
 
 # build stage
-FROM golang:1.20.12 AS build-env
+FROM golang:1.21.5 AS build-env
 RUN apt-get install git mercurial gcc
 RUN git clone https://github.com/nats-io/stan.go.git /stan-go
 RUN cd /stan-go/examples/stan-bench && git checkout tags/v0.5.2 && go build .