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Add healthcheck for Docker

master
Jan-Lukas Else 1 month ago
parent
commit
e95ba682e9
  1. 7
      Dockerfile
  2. 11
      go.mod
  3. 21
      go.sum
  4. 23
      healthcheck.go
  5. 44
      main.go

7
Dockerfile

@ -1,12 +1,10 @@
FROM golang:1.16-alpine3.13 as build
RUN apk add --no-cache git gcc musl-dev sqlite-dev
WORKDIR /app
RUN apk add --no-cache git gcc musl-dev sqlite-dev
ADD *.go go.mod go.sum /app/
RUN go build --tags "libsqlite3 linux sqlite_fts5"
FROM alpine:3.13
RUN apk add --no-cache sqlite-dev tzdata tor
COPY templates/ /app/templates/
WORKDIR /app
VOLUME /app/config
VOLUME /app/data
@ -14,4 +12,7 @@ EXPOSE 80
EXPOSE 443
EXPOSE 8080
CMD ["GoBlog"]
HEALTHCHECK --interval=1m --timeout=10s CMD GoBlog healthcheck
RUN apk add --no-cache sqlite-dev tzdata tor
COPY templates/ /app/templates/
COPY --from=build /app/GoBlog /bin/

11
go.mod

@ -34,11 +34,11 @@ require (
github.com/lopezator/migrator v0.3.0
github.com/magiconair/properties v1.8.5 // indirect
github.com/mattn/go-sqlite3 v1.14.6
github.com/microcosm-cc/bluemonday v1.0.5
github.com/microcosm-cc/bluemonday v1.0.7
github.com/miekg/dns v1.1.41 // indirect
github.com/mitchellh/go-server-timing v1.0.1
github.com/mitchellh/mapstructure v1.4.1 // indirect
github.com/pelletier/go-toml v1.8.1 // indirect
github.com/pelletier/go-toml v1.9.0 // indirect
github.com/pquerna/otp v1.3.0
github.com/schollz/sqlite3dump v1.2.4
github.com/smartystreets/assertions v1.2.0 // indirect
@ -51,18 +51,17 @@ require (
github.com/thoas/go-funk v0.8.0
github.com/tomnomnom/linkheader v0.0.0-20180905144013-02ca5825eb80
github.com/vcraescu/go-paginator v1.0.1-0.20201114172518-2cfc59fe05c2
github.com/yuin/goldmark v1.3.3
github.com/yuin/goldmark v1.3.4
github.com/yuin/goldmark-emoji v1.0.1
go.uber.org/multierr v1.6.0 // indirect
go.uber.org/zap v1.16.0 // indirect
golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2 // indirect
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 // indirect
golang.org/x/mod v0.4.1 // indirect
golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c
golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
golang.org/x/sys v0.0.0-20210402192133-700132347e07 // indirect
golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57 // indirect
golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf // indirect
golang.org/x/text v0.3.6 // indirect
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
gopkg.in/ini.v1 v1.62.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect

21
go.sum

@ -48,8 +48,6 @@ github.com/caddyserver/certmagic v0.13.0/go.mod h1:dNOzF4iOB7H9E51xTooMB90vs+2XN
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927/go.mod h1:h/aW8ynjgkuj+NQRlZcDbAbM1ORAbXjXX77sX7T289U=
github.com/chris-ramon/douceur v0.2.0 h1:IDMEdxlEUUBYBKE4z/mJnFyVXox+MjuEVDJNN27glkU=
github.com/chris-ramon/douceur v0.2.0/go.mod h1:wDW5xjJdeoMm1mRt4sD4c/LbF/mWdEpRXQKjTR8nIBE=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
@ -231,8 +229,8 @@ github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mholt/acmez v0.1.3 h1:J7MmNIk4Qf9b8mAGqAh4XkNeowv3f1zW816yf4zt7Qk=
github.com/mholt/acmez v0.1.3/go.mod h1:8qnn8QA/Ewx8E3ZSsmscqsIjhhpxuy9vqdgbX2ceceM=
github.com/microcosm-cc/bluemonday v1.0.5 h1:cF59UCKMmmUgqN1baLvqU/B1ZsMori+duLVTLpgiG3w=
github.com/microcosm-cc/bluemonday v1.0.5/go.mod h1:8iwZnFn2CDDNZ0r6UXhF4xawGvzaqzCRa1n3/lO3W2w=
github.com/microcosm-cc/bluemonday v1.0.7 h1:6yAQfk4XT+PI/dk1ZeBp1gr3Q2Hd1DR0O3aEyPUJVTE=
github.com/microcosm-cc/bluemonday v1.0.7/go.mod h1:HOT/6NaBlR0f9XlxD3zolN6Z3N8Lp4pvhp+jLS5ihnI=
github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/miekg/dns v1.1.30/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
github.com/miekg/dns v1.1.41 h1:WMszZWJG0XmzbK9FEmzH2TVcqYzFesusSIB41b8KHxY=
@ -256,8 +254,8 @@ github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn
github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
github.com/pelletier/go-toml v1.0.1-0.20170904195809-1d6b12b7cb29/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
github.com/pelletier/go-toml v1.8.1 h1:1Nf83orprkJyknT6h7zbuEGUEjcyVlCxSUGTENmNCRM=
github.com/pelletier/go-toml v1.8.1/go.mod h1:T2/BmBdy8dvIRq1a/8aqjN41wvWlN4lrapLU/GW4pbc=
github.com/pelletier/go-toml v1.9.0 h1:NOd0BRdOKpPf0SxkL3HxSQOG7rNh+4kl6PHcBPFs7Q0=
github.com/pelletier/go-toml v1.9.0/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@ -341,8 +339,8 @@ github.com/vcraescu/go-paginator v1.0.1-0.20201114172518-2cfc59fe05c2 h1:l5j4nE6
github.com/vcraescu/go-paginator v1.0.1-0.20201114172518-2cfc59fe05c2/go.mod h1:NEDNuq1asYbAeX+uy6w56MDQSFmBQz9k+N9Hy6m4r2U=
github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.3.3 h1:37BdQwPx8VOSic8eDSWee6QL9mRpZRm9VJp/QugNrW0=
github.com/yuin/goldmark v1.3.3/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
github.com/yuin/goldmark v1.3.4 h1:pd9FbZYGoTk0XaRHfu9oRrAiD8F5/MVZ1aMgLK2+S/w=
github.com/yuin/goldmark v1.3.4/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
github.com/yuin/goldmark-emoji v1.0.1 h1:ctuWEyzGBwiucEqxzwe0SOYDXPAucOrE9NQC18Wa1os=
github.com/yuin/goldmark-emoji v1.0.1/go.mod h1:2w1E6FEWLcDQkoTE+7HU6QF1F6SLlNGjRIBbIZQFqkQ=
go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
@ -417,8 +415,9 @@ golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLL
golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c h1:KHUzaHIpjWVlVVNh65G3hhuj3KB1HnjY6Cq5cTvRQT8=
golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1 h1:4qWs8cYYH6PoEFy4dfhDFgoMGkwAcETd+MmPdCPMzUc=
golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1/go.mod h1:9tjilg8BloeKEkVJvy7fQ90B1CfIiPueXVOjqfkSzI8=
golang.org/x/oauth2 v0.0.0-20170912212905-13449ad91cb2/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@ -454,8 +453,8 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210402192133-700132347e07 h1:4k6HsQjxj6hVMsI2Vf0yKlzt5lXxZsMW1q0zaq2k8zY=
golang.org/x/sys v0.0.0-20210402192133-700132347e07/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57 h1:F5Gozwx4I1xtr/sr/8CFbb57iKi3297KFs0QDbGN60A=
golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf h1:MZ2shdL+ZM/XzY3ZGOnh4Nlpnxz5GSOhOmtHo3iPU6M=
golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=

23
healthcheck.go

@ -0,0 +1,23 @@
package main
import (
"fmt"
"io"
"net/http"
)
func healthcheck() bool {
req, err := http.NewRequest(http.MethodGet, appConfig.Server.PublicAddress+"/ping", nil)
if err != nil {
fmt.Println(err.Error())
return false
}
resp, err := appHttpClient.Do(req)
if err != nil {
fmt.Println(err.Error())
return false
}
defer resp.Body.Close()
_, _ = io.Copy(io.Discard, resp.Body)
return resp.StatusCode == 200
}

44
main.go

@ -16,7 +16,7 @@ var memprofile = flag.String("memprofile", "", "write memory profile to `file`")
func main() {
var err error
// Init CPU profiling
// Init CPU and memory profiling
flag.Parse()
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
@ -29,6 +29,21 @@ func main() {
}
defer pprof.StopCPUProfile()
}
if *memprofile != "" {
defer func() {
f, err := os.Create(*memprofile)
if err != nil {
log.Fatalln("could not create memory profile: ", err.Error())
return
}
defer f.Close()
runtime.GC()
if err := pprof.WriteHeapProfile(f); err != nil {
log.Fatalln("could not write memory profile: ", err.Error())
return
}
}()
}
// Initialize config
log.Println("Initialize configuration...")
@ -36,7 +51,18 @@ func main() {
log.Fatalln("Failed to init config:", err.Error())
}
// Small tools before init
// Healthcheck tool
if len(os.Args) >= 2 && os.Args[1] == "healthcheck" {
// Connect to public address + "/ping" and exit with 0 when successful
if health := healthcheck(); health {
os.Exit(0)
} else {
os.Exit(1)
}
return
}
// Tool to generate TOTP secret
if len(os.Args) >= 2 && os.Args[1] == "totp-secret" {
key, err := totp.Generate(totp.GenerateOpts{
Issuer: appConfig.Server.PublicAddress,
@ -132,18 +158,4 @@ func main() {
}
log.Println("Closed Database")
// Write memory profile
if *memprofile != "" {
f, err := os.Create(*memprofile)
if err != nil {
log.Fatalln("could not create memory profile: ", err.Error())
return
}
defer f.Close()
runtime.GC()
if err := pprof.WriteHeapProfile(f); err != nil {
log.Fatalln("could not write memory profile: ", err.Error())
return
}
}
}
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