grim/tagpull

Initial import

2019-04-15, Gary Kramlich
9ffd28b92234
Parents
Children a5cfb94766b5
Initial import
3 files changed, 262 insertions(+), 0 deletions(-)
  • +34 -0
    go.mod
  • +95 -0
    go.sum
  • +133 -0
    main.go
    • --- /dev/null Thu Jan 01 00:00:00 1970 +0000
    +++ b/go.mod Mon Apr 15 22:55:11 2019 -0500
    @@ -0,0 +1,34 @@
    +module bitbucket.org/rw_grim/k8s-update-on-id
    +
    +require (
    + github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96 // indirect
    + github.com/elazarl/goproxy v0.0.0-20170405201442-c4fc26588b6e // indirect
    + github.com/evanphx/json-patch v0.0.0-20190203023257-5858425f7550 // indirect
    + github.com/gogo/protobuf v1.1.1 // indirect
    + github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903 // indirect
    + github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
    + github.com/google/uuid v1.0.0 // indirect
    + github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d // indirect
    + github.com/hashicorp/golang-lru v0.5.0 // indirect
    + github.com/imdario/mergo v0.3.7 // indirect
    + github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be // indirect
    + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
    + github.com/modern-go/reflect2 v1.0.1 // indirect
    + github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f // indirect
    + github.com/onsi/gomega v0.0.0-20190113212917-5533ce8a0da3 // indirect
    + github.com/sirupsen/logrus v1.4.1
    + github.com/spf13/pflag v1.0.1 // indirect
    + golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a // indirect
    + golang.org/x/net v0.0.0-20190206173232-65e2d4e15006 // indirect
    + golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a // indirect
    + golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db // indirect
    + golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
    + gopkg.in/inf.v0 v0.9.0 // indirect
    + k8s.io/api v0.0.0-20190313235455-40a48860b5ab
    + k8s.io/apimachinery v0.0.0-20190313205120-d7deff9243b1
    + k8s.io/client-go v11.0.0+incompatible
    + k8s.io/klog v0.0.0-20190306015804-8e90cee79f82 // indirect
    + k8s.io/kube-openapi v0.0.0-20190228160746-b3a7cee44a30 // indirect
    + k8s.io/utils v0.0.0-20190308190857-21c4ce38f2a7 // indirect
    + sigs.k8s.io/yaml v1.1.0 // indirect
    +)
    --- /dev/null Thu Jan 01 00:00:00 1970 +0000
    +++ b/go.sum Mon Apr 15 22:55:11 2019 -0500
    @@ -0,0 +1,95 @@
    +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
    +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
    +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
    +github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
    +github.com/elazarl/goproxy v0.0.0-20170405201442-c4fc26588b6e/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
    +github.com/evanphx/json-patch v0.0.0-20190203023257-5858425f7550/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
    +github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
    +github.com/gogo/protobuf v1.1.1 h1:72R+M5VuhED/KujmZVcIquuo8mBgX4oVda//DQb3PXo=
    +github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
    +github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
    +github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
    +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
    +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/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
    +github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d h1:7XGaL1e6bYS1yIonGp9761ExpPPV1ui0SAC59Yube9k=
    +github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d/go.mod h1:sJBsCZ4ayReDTBIg8b9dl28c5xFWyhBTVRp3pOg5EKY=
    +github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
    +github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
    +github.com/imdario/mergo v0.3.7 h1:Y+UAYTZ7gDEuOfhxKWy+dvb5dRQ6rJjFSdX2HZY1/gI=
    +github.com/imdario/mergo v0.3.7/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
    +github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be h1:AHimNtVIpiBjPUhEF5KNCkrUyqTSA5zWUl8sQ2bfGBE=
    +github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
    +github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
    +github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
    +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/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
    +github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
    +github.com/onsi/gomega v0.0.0-20190113212917-5533ce8a0da3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
    +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
    +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
    +github.com/sirupsen/logrus v1.4.1 h1:GL2rEmy6nsikmW0r8opw9JIRScdMF5hA8cOYLH7In1k=
    +github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
    +github.com/spf13/pflag v1.0.1 h1:aCvUg6QPl3ibpQUxyLkrEkCHtPqYJL4x9AuhqVqFis4=
    +github.com/spf13/pflag v1.0.1/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
    +github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
    +github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
    +github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
    +golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a h1:Igim7XhdOpBnWPuYJ70XcNpq8q3BCACtVgNfoJxOV7g=
    +golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
    +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 v0.0.0-20190206173232-65e2d4e15006 h1:bfLnR+k0tq5Lqt6dflRLcZiz6UaXCMt3vhYJ1l4FQ80=
    +golang.org/x/net v0.0.0-20190206173232-65e2d4e15006/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
    +golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a h1:tImsplftrFpALCYumobsd0K86vlAs/eXGFms2txfJfA=
    +golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
    +golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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    +golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw=
    +golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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    +golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
    +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 v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
    +google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
    +google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
    +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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    +gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
    +gopkg.in/inf.v0 v0.9.0 h1:3zYtXIO92bvsdS3ggAdA8Gb4Azj0YU+TVY1uGYNFA8o=
    +gopkg.in/inf.v0 v0.9.0/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
    +gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
    +gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
    +gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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    +k8s.io/api v0.0.0-20190415132514-c2f1300cac21/go.mod h1:5HMaKNcWJji8AGOBjOZxmFDwRutMItn4MrrXZcFANNo=
    +k8s.io/apimachinery v0.0.0-20190313205120-d7deff9243b1 h1:IS7K02iBkQXpCeieSiyJjGoLSdVOv2DbPaWHJ+ZtgKg=
    +k8s.io/apimachinery v0.0.0-20190313205120-d7deff9243b1/go.mod h1:ccL7Eh7zubPUSh9A3USN90/OzHNSVN6zxzde07TDCL0=
    +k8s.io/apimachinery v0.0.0-20190415132420-07d458fe0356 h1:IneIG23feOS594nIIsJVRUHK50ALz/g0/Co/3iML7RI=
    +k8s.io/apimachinery v0.0.0-20190415132420-07d458fe0356/go.mod h1:jLjiXl596L+wVGdx8dRx6sSNnabzqnI2+nAJqqqyesQ=
    +k8s.io/client-go v10.0.0+incompatible h1:F1IqCqw7oMBzDkqlcBymRq1450wD0eNqLE9jzUrIi34=
    +k8s.io/client-go v10.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodBc8nIyt8L5s=
    +k8s.io/client-go v11.0.0+incompatible h1:LBbX2+lOwY9flffWlJM7f1Ct8V2SRNiMRDFeiwnJo9o=
    +k8s.io/client-go v11.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodBc8nIyt8L5s=
    +k8s.io/klog v0.0.0-20190306015804-8e90cee79f82 h1:SHucoAy7lRb+w5oC/hbXyZg+zX+Wftn6hD4tGzHCVqA=
    +k8s.io/klog v0.0.0-20190306015804-8e90cee79f82/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
    +k8s.io/kube-openapi v0.0.0-20190228160746-b3a7cee44a30/go.mod h1:BXM9ceUBTj2QnfH2MK1odQs778ajze1RxcmP6S8RVVc=
    +k8s.io/utils v0.0.0-20190308190857-21c4ce38f2a7 h1:8r+l4bNWjRlsFYlQJnKJ2p7s1YQPj4XyXiJVqDHRx7c=
    +k8s.io/utils v0.0.0-20190308190857-21c4ce38f2a7/go.mod h1:8k8uAuAQ0rXslZKaEWd0c3oVhZz7sSzSiPnVZayjIX0=
    +sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
    +sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
    --- /dev/null Thu Jan 01 00:00:00 1970 +0000
    +++ b/main.go Mon Apr 15 22:55:11 2019 -0500
    @@ -0,0 +1,133 @@
    +package main
    +
    +import (
    + "os"
    + "os/user"
    + "path/filepath"
    + "strings"
    + "time"
    +
    + log "github.com/sirupsen/logrus"
    +
    + appsv1 "k8s.io/api/apps/v1"
    + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    + "k8s.io/client-go/kubernetes"
    + "k8s.io/client-go/rest"
    + "k8s.io/client-go/tools/clientcmd"
    +)
    +
    +func init() {
    + log.SetOutput(os.Stdout)
    + log.SetLevel(log.DebugLevel)
    +}
    +
    +func getConfig() (*rest.Config, error) {
    + config, err := rest.InClusterConfig()
    + if err != nil {
    + if kubeconfig, found := os.LookupEnv("KUBECONFIG"); found {
    + config, err = clientcmd.BuildConfigFromFlags("", kubeconfig)
    + } else {
    + user, uErr := user.Current()
    + if uErr != nil {
    + return nil, uErr
    + }
    +
    + path := filepath.Join(user.HomeDir, ".kube", "config")
    + config, err = clientcmd.BuildConfigFromFlags("", path)
    + }
    + }
    +
    + return config, err
    +}
    +
    +func createLabelString(labelMap map[string]string) string {
    + labels := make([]string, len(labelMap))
    + i := 0
    + for k, v := range labelMap {
    + labels[i] = k + "=" + v
    + i++
    + }
    + return strings.Join(labels, ",")
    +}
    +
    +func checkForUpdate(clientset *kubernetes.Clientset, deployment appsv1.Deployment) error {
    + namespace := deployment.Namespace
    +
    + clientset.AppsV1().Deployments(namespace).Update(&deployment)
    +
    + listOpts := metav1.ListOptions{
    + LabelSelector: createLabelString(deployment.Spec.Template.Labels),
    + }
    + pods, err := clientset.CoreV1().Pods(namespace).List(listOpts)
    + if err != nil {
    + return err
    + }
    +
    + for _, pod := range pods.Items {
    + log.Infof("found pod: %s", pod.Name)
    + }
    +
    + return nil
    +}
    +
    +func main() {
    + namespace := ""
    + tick := 1 * time.Minute
    + annotation := "rwgrim/autoupdate"
    +
    + // create a map which is namespace/deployment-name that stores the last
    + // time it was checked
    + cache := map[string]time.Time{}
    +
    + config, err := getConfig()
    + if err != nil {
    + panic(err.Error())
    + }
    +
    + clientset, err := kubernetes.NewForConfig(config)
    + if err != nil {
    + panic(err.Error())
    + }
    +
    + for {
    + log.Info("checking for updates")
    +
    + ts := time.Now().UTC()
    +
    + deployments, err := clientset.AppsV1().Deployments(namespace).List(metav1.ListOptions{})
    + if err != nil {
    + log.Warningf("failed to get deployments: %s", err.Error())
    + } else {
    + for _, d := range deployments.Items {
    + if rawInterval, found := d.Spec.Template.Annotations[annotation]; found {
    + name := d.Namespace + "/" + d.Name
    +
    + interval, err := time.ParseDuration(rawInterval)
    + if err != nil {
    + log.Warnf("%s has an invalid duration of '%s'", name, rawInterval)
    + }
    +
    + lastCheck, found := cache[name]
    + if !found {
    + log.Infof("found new deployment %s with interval %s", name, interval)
    + lastCheck = time.Time{}
    + }
    +
    + if ts.Sub(lastCheck) > interval {
    + log.Debugf("checking %s", name)
    + checkForUpdate(clientset, d)
    + cache[name] = ts
    + } else {
    + log.Debugf(
    + "%s will be checked in %s",
    + name,
    + time.Until(lastCheck.Add(interval)),
    + )
    + }
    + }
    + }
    + }
    +
    + time.Sleep(tick)
    + }
    +}