From 64662a28ce2d0499d6988aa82262b1fa4cbd6fc5 Mon Sep 17 00:00:00 2001 From: Joakim Olsson Date: Mon, 11 Mar 2019 19:30:52 +0100 Subject: [PATCH] Initial commit --- .dockerignore | 4 +++ .gitignore | 1 + .gitlab-ci.yml | 15 +++++++++++ Dockerfile | 10 ++++++++ go.mod | 27 ++++++++++++++++++++ go.sum | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++ main.go | 63 +++++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 187 insertions(+) create mode 100644 .dockerignore create mode 100644 .gitignore create mode 100644 .gitlab-ci.yml create mode 100644 Dockerfile create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 0000000..ac0b26d --- /dev/null +++ b/.dockerignore @@ -0,0 +1,4 @@ +vendor +.gitignore +.git +Dockerfile diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..485dee6 --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +.idea diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml new file mode 100644 index 0000000..6de0f3f --- /dev/null +++ b/.gitlab-ci.yml @@ -0,0 +1,15 @@ +stages: + - build + +variables: + DOCKER_HOST: tcp://docker:2375/ + +image: registry.gitlab.com/sparetimecoders/build-tools + +build: + stage: build + services: + - docker:dind + script: + - build + - push diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..60953ae --- /dev/null +++ b/Dockerfile @@ -0,0 +1,10 @@ +FROM golang:1.11-stretch as builder +WORKDIR /build +COPY * ./ +RUN go get +RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o default-request-adder . + +FROM scratch +COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ +COPY --from=builder /build/default-request-adder / +CMD ["/default-request-adder"] diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..46b3fe3 --- /dev/null +++ b/go.mod @@ -0,0 +1,27 @@ +module gitlab.com/unboundsoftware/default-request-adder + +go 1.12 + +require ( + github.com/ghodss/yaml v1.0.0 // indirect + github.com/gogo/protobuf v1.2.1 // indirect + github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect + github.com/golang/protobuf v1.3.0 // indirect + github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c // indirect + github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect + github.com/googleapis/gnostic v0.2.0 // indirect + github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc // indirect + github.com/json-iterator/go v1.1.5 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.1 // indirect + github.com/peterbourgon/diskv v2.0.1+incompatible // indirect + golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 // indirect + golang.org/x/net v0.0.0-20190311031020-56fb01167e7d // indirect + golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421 // indirect + golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect + gopkg.in/inf.v0 v0.9.1 // indirect + gopkg.in/yaml.v2 v2.2.2 // indirect + k8s.io/api v0.0.0-20181128191700-6db15a15d2d3 // indirect + k8s.io/apimachinery v0.0.0-20181128191346-49ce2735e507 + k8s.io/client-go v9.0.0+incompatible +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..653793b --- /dev/null +++ b/go.sum @@ -0,0 +1,67 @@ +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk= +github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= +github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE= +github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.3.0 h1:kbxbvI4Un1LUWKxufD+BiE6AEExYYgkQLQmLFqA1LFk= +github.com/golang/protobuf v1.3.0/go.mod h1:Qd/q+1AKNOZr9uGQzbzCmRO6sUih6GTPZv6a1/R87v0= +github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c h1:964Od4U6p2jUkFxvCydnIczKteheJEzHRToSGK3Bnlw= +github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ= +github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf h1:+RRA9JqSOZFfKrOeqr2z77+8R2RKyh8PG66dcu1V0ck= +github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf/go.mod h1:HP5RmnzzSNb993RKQDq4+1A4ia9nllfqcQFTQJedwGI= +github.com/googleapis/gnostic v0.2.0 h1:l6N3VoaVzTncYYW+9yOz2LJJammFZGBO13sqgEhpy9g= +github.com/googleapis/gnostic v0.2.0/go.mod h1:sJBsCZ4ayReDTBIg8b9dl28c5xFWyhBTVRp3pOg5EKY= +github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc h1:f8eY6cV/x1x+HLjOp4r72s/31/V2aTUtg5oKRRPf8/Q= +github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA= +github.com/json-iterator/go v1.1.5 h1:gL2yXlmiIo4+t+y32d4WGwOjKGYcGOuyrg46vadswDE= +github.com/json-iterator/go v1.1.5/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU= +github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q= +github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= +github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg= +github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI= +github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= +github.com/peterbourgon/diskv v2.0.1+incompatible h1:UBdAOUP5p4RWqPBg048CAvpKN+vxiaj6gdUUzhl4XmI= +github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= +golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= +golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= +golang.org/x/net v0.0.0-20190311031020-56fb01167e7d h1:vQJbQvu6+H699vOmHa20TEBI9nEqroRbMtf/9biIE3A= +golang.org/x/net v0.0.0-20190311031020-56fb01167e7d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= +golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421 h1:Wo7BWFiOk0QRFMLYMqJGFMd9CgUAcGx7V+qEg/h5IBI= +golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= +golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ= +golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= +golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= +google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc= +gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw= +gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +k8s.io/api v0.0.0-20181128191700-6db15a15d2d3 h1:yU+uHaWFaeWjRoVDuKI2qxcOP9PPFJ+665yJuHI5Ils= +k8s.io/api v0.0.0-20181128191700-6db15a15d2d3/go.mod h1:iuAfoD4hCxJ8Onx9kaTIt30j7jUFS00AXQi6QMi99vA= +k8s.io/api v0.0.0-20190311155512-f01a027e4c26 h1:5Aq6o/tRwhZ2PEK2D/aIHF4vmHWCGT5oVtQC8QPxn4E= +k8s.io/api v0.0.0-20190311155512-f01a027e4c26/go.mod h1:iuAfoD4hCxJ8Onx9kaTIt30j7jUFS00AXQi6QMi99vA= +k8s.io/apimachinery v0.0.0-20181128191346-49ce2735e507 h1:DRtb2PO1ps3SPBkAUYz9J+rIPvYDZALFAYhWBeyvmcU= +k8s.io/apimachinery v0.0.0-20181128191346-49ce2735e507/go.mod h1:ccL7Eh7zubPUSh9A3USN90/OzHNSVN6zxzde07TDCL0= +k8s.io/apimachinery v0.0.0-20190221213512-86fb29eff628 h1:UYfHH+KEF88OTg+GojQUwFTNxbxwmoktLwutUzR0GPg= +k8s.io/apimachinery v0.0.0-20190221213512-86fb29eff628/go.mod h1:ccL7Eh7zubPUSh9A3USN90/OzHNSVN6zxzde07TDCL0= +k8s.io/apimachinery v0.0.0-20190309062729-b6b933fb33e6 h1:xQJFUx7yTtyZyE39eBLW5JP3r9g9Z8VFklkBfwl649c= +k8s.io/apimachinery v0.0.0-20190311155258-f9b45bc4494d h1:8yHHbjNUBWYo3KXE/R2RS1Kfadsbng2IEcBj9Ak89SY= +k8s.io/client-go v9.0.0+incompatible h1:2kqW3X2xQ9SbFvWZjGEHBLlWc1LG9JIJNXWkuqwdZ3A= +k8s.io/client-go v9.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodBc8nIyt8L5s= +k8s.io/client-go v10.0.0+incompatible h1:F1IqCqw7oMBzDkqlcBymRq1450wD0eNqLE9jzUrIi34= +k8s.io/client-go v10.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodBc8nIyt8L5s= diff --git a/main.go b/main.go new file mode 100644 index 0000000..dc1997c --- /dev/null +++ b/main.go @@ -0,0 +1,63 @@ +package main + +import ( + "fmt" + "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/api/resource" + "log" + "time" + + "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/rest" +) + +func main() { + config, err := rest.InClusterConfig() + if err != nil { + panic(err.Error()) + } + clientset, err := kubernetes.NewForConfig(config) + if err != nil { + panic(err.Error()) + } + for { + namespaces, err := clientset.CoreV1().Namespaces().List(metav1.ListOptions{}) + if err != nil { + panic(err.Error()) + } + + for _, ns := range namespaces.Items { + fmt.Printf("Checking for LimitRange named extreme-request-defaults in namespace '%v'\n", ns.Name) + if limitRange, err := clientset.CoreV1().LimitRanges(ns.Name).List(metav1.ListOptions{FieldSelector:"metadata.name=extreme-request-defaults"}); err == nil && len(limitRange.Items) == 0 { + fmt.Printf("Trying to create LimitaRange\n") + limits := []v1.LimitRangeItem{ + { + DefaultRequest:v1.ResourceList{"memory": *resource.NewQuantity(1024*1024*1024*1024, resource.BinarySI)}, + }, + } + if _, err := clientset.CoreV1().LimitRanges(ns.Name).Create(&v1.LimitRange{Spec: v1.LimitRangeSpec{Limits: limits}}); err != nil { + log.Printf("Unable to create LimitRange in namespace '%v'\n", ns.Name) + } + } + } + fmt.Printf("There are %d pods in the cluster\n", len(namespaces.Items)) + + // Examples for error handling: + // - Use helper functions like e.g. errors.IsNotFound() + // - And/or cast to StatusError and use its properties like e.g. ErrStatus.Message + _, err = clientset.CoreV1().Pods("default").Get("example-xxxxx", metav1.GetOptions{}) + if errors.IsNotFound(err) { + fmt.Printf("Pod not found\n") + } else if statusError, isStatus := err.(*errors.StatusError); isStatus { + fmt.Printf("Error getting pod %v\n", statusError.ErrStatus.Message) + } else if err != nil { + panic(err.Error()) + } else { + fmt.Printf("Found pod\n") + } + + time.Sleep(10 * time.Second) + } +}