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refactor azad-kube-proxy to use go-args (#597)
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This PR refactors the proxy to use go-arg instead of a CLI framework. It's a first step at simplifying the code base.
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@simongottschlag
simongottschlag authored Jan 9, 2023
1 parent 3761624 commit f142a77
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Showing 17 changed files with 455 additions and 914 deletions.
11 changes: 11 additions & 0 deletions .github/workflows/kind-e2e.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,8 @@ jobs:
TENANT_ID: ${{ secrets.TENANT_ID }}
TEST_USER_SP_OBJECT_ID: ${{ secrets.TEST_USER_SP_OBJECT_ID }}
run: |
set -x
set -e
mkdir -p tmp
NODE_IP=$(kubectl get node -o json | jq -r '.items[0].status.addresses[] | select(.type=="InternalIP").address')
Expand All @@ -75,7 +77,16 @@ jobs:
openssl req -newkey rsa:4096 -x509 -sha256 -days 3650 -nodes -out tmp/cert.crt -keyout tmp/cert.key -subj "/C=SE/ST=LOCALHOST/L=LOCALHOST/O=LOCALHOST/OU=LOCALHOST/CN=${NODE_IP}" -extensions san -config tmp/csr-config
kubectl create namespace ${{ env.NAME }}
kubectl --namespace ${{ env.NAME }} create secret tls test-cert --cert=tmp/cert.crt --key=tmp/cert.key
set +e
helm upgrade --wait --timeout 120s --namespace ${{ env.NAME }} --install ${{ env.NAME }} --values test/test-values.yaml --set secret.CLIENT_ID=${CLIENT_ID} --set secret.CLIENT_SECRET=${CLIENT_SECRET} --set secret.TENANT_ID=${TENANT_ID} --set image.repository=${{ env.NAME }} --set image.tag=${{ steps.prep.outputs.VERSION }} ./charts/azad-kube-proxy
EXIT_CODE=$?
set -e
if [ $EXIT_CODE -ne 0 ]; then
kubectl --namespace ${{ env.NAME }} logs -l app.kubernetes.io/name=${{ env.NAME }}
echo helm install failed 1>&2
exit 1
fi
cat <<EOF | kubectl apply -f -
apiVersion: rbac.authorization.k8s.io/v1
Expand Down
44 changes: 14 additions & 30 deletions cmd/azad-kube-proxy/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ import (

"github.com/go-logr/logr"
"github.com/go-logr/zapr"
"github.com/urfave/cli/v2"
"github.com/xenitab/azad-kube-proxy/pkg/config"
"github.com/xenitab/azad-kube-proxy/pkg/proxy"
"go.uber.org/zap"
Expand All @@ -30,51 +29,36 @@ func main() {

zapLog, err := zap.NewProduction()
if err != nil {
panic(fmt.Sprintf("who watches the watchmen (%v)?", err))
fmt.Fprintf(os.Stderr, "unable to configure logging: %v\n", err)
os.Exit(1)
}
log = zapr.NewLogger(zapLog)
ctx := logr.NewContext(context.Background(), log)

// Generate config
cli.VersionPrinter = func(c *cli.Context) {
fmt.Printf("version=%s revision=%s created=%s\n", c.App.Version, Revision, Created)
}

var cfg config.Config

app := &cli.App{
Name: "azad-kube-proxy",
Usage: "Azure AD Kubernetes API Proxy",
Version: Version,
Flags: config.Flags(ctx),
Action: func(c *cli.Context) error {
var err error
cfg, err = config.NewConfig(ctx, c)
if err != nil {
return err
}
return nil
},
err = run(ctx)
if err != nil {
log.Error(err, "application returned an error")
os.Exit(1)
}
}

err = app.Run(os.Args)
func run(ctx context.Context) error {
cfg, err := config.NewConfig(os.Args[1:], Version, Revision, Created)
if err != nil {
log.Error(err, "Unable to generate config")
os.Exit(1)
return err
}

// Start reverse proxy
server, err := proxy.NewProxyClient(ctx, cfg)
if err != nil {
log.Error(err, "Unable to initialize proxy server")
os.Exit(1)
return fmt.Errorf("unable to initialize proxy server: %w", err)

}

err = server.Start(ctx)
if err != nil {
log.Error(err, "Proxy server returned error")
os.Exit(1)
return fmt.Errorf("proxy server returned an error: %w", err)
}

os.Exit(0)
return nil
}
8 changes: 0 additions & 8 deletions go.mod
View file
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@ require (
github.com/bombsimon/logrusr/v2 v2.0.1
github.com/go-logr/logr v1.2.3
github.com/go-logr/zapr v1.2.3
github.com/go-playground/validator/v10 v10.11.1
github.com/google/go-cmp v0.5.9
github.com/gorilla/mux v1.8.0
github.com/manicminer/hamilton v0.52.0
Expand All @@ -22,7 +21,6 @@ require (
github.com/rs/cors v1.8.3
github.com/sirupsen/logrus v1.9.0
github.com/stretchr/testify v1.8.1
github.com/urfave/cli/v2 v2.23.7
github.com/xenitab/go-oidc-middleware v0.0.39
github.com/xenitab/go-oidc-middleware/oidchttp v0.0.39
go.uber.org/zap v1.24.0
Expand All @@ -40,16 +38,13 @@ require (
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.2.0 // indirect
github.com/chzyer/readline v1.5.1 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0 // indirect
github.com/emicklei/go-restful/v3 v3.10.1 // indirect
github.com/evanphx/json-patch v4.12.0+incompatible // indirect
github.com/go-openapi/jsonpointer v0.19.5 // indirect
github.com/go-openapi/jsonreference v0.20.0 // indirect
github.com/go-openapi/swag v0.22.3 // indirect
github.com/go-playground/locales v0.14.0 // indirect
github.com/go-playground/universal-translator v0.18.0 // indirect
github.com/goccy/go-json v0.10.0 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang-jwt/jwt/v4 v4.4.3 // indirect
Expand All @@ -65,7 +60,6 @@ require (
github.com/josharian/intern v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/kylelemons/godebug v1.1.0 // indirect
github.com/leodido/go-urn v1.2.1 // indirect
github.com/lestrrat-go/backoff/v2 v2.0.8 // indirect
github.com/lestrrat-go/blackmagic v1.0.1 // indirect
github.com/lestrrat-go/httpcc v1.0.1 // indirect
Expand All @@ -85,9 +79,7 @@ require (
github.com/prometheus/common v0.39.0 // indirect
github.com/prometheus/procfs v0.9.0 // indirect
github.com/rivo/uniseg v0.4.3 // indirect
github.com/russross/blackfriday/v2 v2.1.0 // indirect
github.com/spf13/pflag v1.0.5 // indirect
github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
go.uber.org/atomic v1.10.0 // indirect
go.uber.org/multierr v1.9.0 // indirect
go.uber.org/ratelimit v0.2.0 // indirect
Expand Down
24 changes: 0 additions & 24 deletions go.sum
View file
Original file line number Diff line number Diff line change
Expand Up @@ -78,8 +78,6 @@ github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDk
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
Expand Down Expand Up @@ -121,14 +119,6 @@ github.com/go-openapi/jsonreference v0.20.0/go.mod h1:Ag74Ico3lPc+zR+qjn4XBUmXym
github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
github.com/go-openapi/swag v0.22.3 h1:yMBqmnQ0gyZvEb/+KzuWZOXgllrXT4SADYbvDaXHv/g=
github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
github.com/go-playground/locales v0.14.0 h1:u50s323jtVGugKlcYeyzC0etD1HifMjqmJqb8WugfUU=
github.com/go-playground/locales v0.14.0/go.mod h1:sawfccIbzZTqEDETgFXqTho0QybSa7l++s0DH+LDiLs=
github.com/go-playground/universal-translator v0.18.0 h1:82dyy6p4OuJq4/CByFNOn/jYrnRPArHwAcmLoJZxyho=
github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl+lu/H90nyDXpg0fqeB/AQUGNTVA=
github.com/go-playground/validator/v10 v10.11.1 h1:prmOlTVv+YjZjmRmNSF3VmspqJIxJWXmqUsHwfTRRkQ=
github.com/go-playground/validator/v10 v10.11.1/go.mod h1:i+3WkQ1FvaUjjxh1kSvIA4dMGDBiPU55YFDl0WbKdWU=
github.com/go-session/session v3.1.2+incompatible h1:yStchEObKg4nk2F7JGE7KoFIrA/1Y078peagMWcrncg=
github.com/goccy/go-json v0.9.7/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
github.com/goccy/go-json v0.10.0 h1:mXKd9Qw4NuzShiRlOXKews24ufknHO7gx30lsDyokKA=
Expand Down Expand Up @@ -233,15 +223,12 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/leodido/go-urn v1.2.1 h1:BqpAaACuzVSgi/VLzGZIobT2z4v53pjosyNd9Yv6n/w=
github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ictyFfxY=
github.com/lestrrat-go/backoff/v2 v2.0.8 h1:oNb5E5isby2kiro9AgdHLv5N5tint1AnDVVf2E2un5A=
github.com/lestrrat-go/backoff/v2 v2.0.8/go.mod h1:rHP/q/r9aT27n24JQLa7JhSQZCKBBOiM/uP402WwN8Y=
github.com/lestrrat-go/blackmagic v1.0.0/go.mod h1:TNgH//0vYSs8VXDCfkZLgIrVTTXQELZffUV0tz3MtdQ=
Expand Down Expand Up @@ -285,7 +272,6 @@ github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaR
github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 h1:KoWmjvw+nsYOo29YJK9vDA65RGE3NrOnUtO7a+RF9HU=
github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8/go.mod h1:HKlIX3XHQyzLZPlr7++PzdhaXEj94dEiJgZDTsxEqUI=
github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
Expand All @@ -305,13 +291,9 @@ github.com/rivo/uniseg v0.4.3 h1:utMvzDsuh3suAEnhH0RdHmoPbU648o6CvXxTx4SBMOw=
github.com/rivo/uniseg v0.4.3/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
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 v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
github.com/rs/cors v1.8.3 h1:O+qNyWn7Z+F9M0ILBHgMVPuB1xTOucVd5gtaYyXBpRo=
github.com/rs/cors v1.8.3/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
Expand Down Expand Up @@ -341,8 +323,6 @@ github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
github.com/tidwall/pretty v1.2.0 h1:RWIZEg2iJ8/g6fDDYzMpobmaoGh5OLl4AXtGUGPcqCs=
github.com/tidwall/rtred v0.1.2 h1:exmoQtOLvDoO8ud++6LwVsAMTu0KPzLTUrMln8u1yu8=
github.com/tidwall/tinyqueue v0.1.1 h1:SpNEvEggbpyN5DIReaJ2/1ndroY8iyEGxPYxoSaymYE=
github.com/urfave/cli/v2 v2.23.7 h1:YHDQ46s3VghFHFf1DdF+Sh7H4RqhcM+t0TmZRJx4oJY=
github.com/urfave/cli/v2 v2.23.7/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
Expand All @@ -351,8 +331,6 @@ github.com/xenitab/go-oidc-middleware v0.0.39 h1:NP6sspn1hMFIwndqn+VNOgqfRfiDPNQ
github.com/xenitab/go-oidc-middleware v0.0.39/go.mod h1:ir5fF6tpCQSHauFEfLaHbmND9pHEEaXHQqpjiOK+PY0=
github.com/xenitab/go-oidc-middleware/oidchttp v0.0.39 h1:2IOoPJ0ONbLzcyQf71BRir/GQMdOlQD2EU4yEHCclxM=
github.com/xenitab/go-oidc-middleware/oidchttp v0.0.39/go.mod h1:Mf1rT41u3mn/FbZNHQmghj1I+mr+xFNLSk1t8UiJohM=
github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
Expand Down Expand Up @@ -501,7 +479,6 @@ golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20210608053332-aa57babbf139/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210616045830-e2b7044e8c71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
Expand All @@ -516,7 +493,6 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.5.0 h1:OLmvp0KP+FVG99Ct/qFiL/Fhk4zp4QQnZ7b2U+5piUM=
golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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