mirror of
https://github.com/komodorio/helm-dashboard.git
synced 2026-03-24 11:48:04 +00:00
Scanners Integration (#18)
* Research scanning * Move files around * Reports the list * Scanner happens * Commit * Work on alternative * refactorings * Progress * Save the state * Commit * Display trivy Results * Checkov also reports * Better display * Correct trivy numbers * Scan pre-install manifest * Readme items * Static checks
This commit is contained in:
Andrey Pokhilko
404
pkg/dashboard/subproc/data.go
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404
pkg/dashboard/subproc/data.go
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@@ -0,0 +1,404 @@
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package subproc
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/hexops/gotextdiff"
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"github.com/hexops/gotextdiff/myers"
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"github.com/hexops/gotextdiff/span"
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"github.com/komodorio/helm-dashboard/pkg/dashboard/utils"
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log "github.com/sirupsen/logrus"
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"gopkg.in/yaml.v3"
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"helm.sh/helm/v3/pkg/release"
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v1 "k8s.io/apimachinery/pkg/apis/testapigroup/v1"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"time"
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)
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type DataLayer struct {
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KubeContext string
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Helm string
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Kubectl string
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Scanners []Scanner
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}
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func (d *DataLayer) runCommand(cmd ...string) (string, error) {
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log.Debugf("Starting command: %s", cmd)
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return utils.RunCommand(cmd, map[string]string{"HELM_KUBECONTEXT": d.KubeContext})
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}
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func (d *DataLayer) runCommandHelm(cmd ...string) (string, error) {
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if d.Helm == "" {
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d.Helm = "helm"
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}
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cmd = append([]string{d.Helm}, cmd...)
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if d.KubeContext != "" {
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cmd = append(cmd, "--kube-context", d.KubeContext)
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}
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return d.runCommand(cmd...)
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}
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func (d *DataLayer) runCommandKubectl(cmd ...string) (string, error) {
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// TODO: migrate into using kubectl "k8s.io/kubectl/pkg/cmd" and kube API
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if d.Kubectl == "" {
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d.Kubectl = "kubectl"
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}
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cmd = append([]string{d.Kubectl}, cmd...)
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if d.KubeContext != "" {
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cmd = append(cmd, "--context", d.KubeContext)
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}
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return d.runCommand(cmd...)
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}
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func (d *DataLayer) CheckConnectivity() error {
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contexts, err := d.ListContexts()
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if err != nil {
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return err
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}
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if len(contexts) < 1 {
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return errors.New("did not find any kubectl contexts configured")
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}
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_, err = d.runCommandHelm("--help") // no point in doing is, since the default context may be invalid
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if err != nil {
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return err
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}
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return nil
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}
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type KubeContext struct {
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IsCurrent bool
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Name string
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Cluster string
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AuthInfo string
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Namespace string
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}
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func (d *DataLayer) ListContexts() (res []KubeContext, err error) {
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out, err := d.runCommandKubectl("config", "get-contexts")
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if err != nil {
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return nil, err
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}
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// kubectl has no JSON output for it, we'll have to do custom text parsing
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lines := strings.Split(out, "\n")
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// find field positions
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fields := regexp.MustCompile(`(\w+\s+)`).FindAllString(lines[0], -1)
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cur := len(fields[0])
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name := cur + len(fields[1])
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cluster := name + len(fields[2])
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auth := cluster + len(fields[3])
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// read items
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for _, line := range lines[1:] {
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if strings.TrimSpace(line) == "" {
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continue
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}
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res = append(res, KubeContext{
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IsCurrent: strings.TrimSpace(line[0:cur]) == "*",
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Name: strings.TrimSpace(line[cur:name]),
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Cluster: strings.TrimSpace(line[name:cluster]),
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AuthInfo: strings.TrimSpace(line[cluster:auth]),
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Namespace: strings.TrimSpace(line[auth:]),
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})
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}
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return res, nil
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}
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func (d *DataLayer) ListInstalled() (res []ReleaseElement, err error) {
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out, err := d.runCommandHelm("ls", "--all", "--all-namespaces", "--output", "json", "--time-format", time.RFC3339)
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if err != nil {
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return nil, err
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}
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err = json.Unmarshal([]byte(out), &res)
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if err != nil {
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return nil, err
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}
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return res, nil
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}
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func (d *DataLayer) ChartHistory(namespace string, chartName string) (res []*HistoryElement, err error) {
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// TODO: there is `max` but there is no `offset`
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out, err := d.runCommandHelm("history", chartName, "--namespace", namespace, "--output", "json", "--max", "18")
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if err != nil {
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return nil, err
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}
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err = json.Unmarshal([]byte(out), &res)
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if err != nil {
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return nil, err
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}
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for _, elm := range res {
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chartRepoName, curVer, err := utils.ChartAndVersion(elm.Chart)
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if err != nil {
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return nil, err
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}
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elm.ChartName = chartRepoName
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elm.ChartVer = curVer
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elm.Updated.Time = elm.Updated.Time.Round(time.Second)
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}
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return res, nil
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}
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func (d *DataLayer) ChartRepoVersions(chartName string) (res []RepoChartElement, err error) {
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cmd := []string{"search", "repo", "--regexp", "/" + chartName + "\v", "--versions", "--output", "json"}
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out, err := d.runCommandHelm(cmd...)
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if err != nil {
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return nil, err
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}
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err = json.Unmarshal([]byte(out), &res)
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if err != nil {
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return nil, err
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}
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return res, nil
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}
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type SectionFn = func(string, string, int, bool) (string, error) // TODO: rework it into struct-based argument?
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func (d *DataLayer) RevisionManifests(namespace string, chartName string, revision int, _ bool) (res string, err error) {
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cmd := []string{"get", "manifest", chartName, "--namespace", namespace}
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if revision > 0 {
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cmd = append(cmd, "--revision", strconv.Itoa(revision))
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}
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out, err := d.runCommandHelm(cmd...)
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if err != nil {
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return "", err
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}
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return out, nil
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}
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func (d *DataLayer) RevisionManifestsParsed(namespace string, chartName string, revision int) ([]*v1.Carp, error) {
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out, err := d.RevisionManifests(namespace, chartName, revision, false)
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if err != nil {
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return nil, err
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}
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dec := yaml.NewDecoder(bytes.NewReader([]byte(out)))
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res := make([]*v1.Carp, 0)
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var tmp interface{}
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for dec.Decode(&tmp) == nil {
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// k8s libs uses only JSON tags defined, say hello to https://github.com/go-yaml/yaml/issues/424
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// bug we can juggle it
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jsoned, err := json.Marshal(tmp)
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if err != nil {
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return nil, err
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}
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var doc v1.Carp
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err = json.Unmarshal(jsoned, &doc)
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if err != nil {
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return nil, err
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}
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if doc.Kind == "" {
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log.Warnf("Manifest piece is not k8s resource: %s", jsoned)
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continue
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}
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res = append(res, &doc)
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}
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return res, nil
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}
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func (d *DataLayer) RevisionNotes(namespace string, chartName string, revision int, _ bool) (res string, err error) {
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out, err := d.runCommandHelm("get", "notes", chartName, "--namespace", namespace, "--revision", strconv.Itoa(revision))
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if err != nil {
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return "", err
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}
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return out, nil
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}
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func (d *DataLayer) RevisionValues(namespace string, chartName string, revision int, onlyUserDefined bool) (res string, err error) {
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cmd := []string{"get", "values", chartName, "--namespace", namespace, "--output", "yaml"}
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if revision > 0 {
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cmd = append(cmd, "--revision", strconv.Itoa(revision))
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}
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if !onlyUserDefined {
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cmd = append(cmd, "--all")
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}
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out, err := d.runCommandHelm(cmd...)
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if err != nil {
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return "", err
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}
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return out, nil
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}
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func (d *DataLayer) GetResource(namespace string, def *v1.Carp) (*v1.Carp, error) {
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out, err := d.runCommandKubectl("get", strings.ToLower(def.Kind), def.Name, "--namespace", namespace, "--output", "json")
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if err != nil {
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if strings.HasSuffix(strings.TrimSpace(err.Error()), " not found") {
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return &v1.Carp{
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Status: v1.CarpStatus{
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Phase: "NotFound",
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Message: err.Error(),
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Reason: "not found",
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},
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}, nil
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} else {
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return nil, err
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}
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}
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var res v1.Carp
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err = json.Unmarshal([]byte(out), &res)
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if err != nil {
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return nil, err
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}
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sort.Slice(res.Status.Conditions, func(i, j int) bool {
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// some condition types always bubble up
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if res.Status.Conditions[i].Type == "Available" {
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return false
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}
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if res.Status.Conditions[j].Type == "Available" {
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return true
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}
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t1 := res.Status.Conditions[i].LastTransitionTime
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t2 := res.Status.Conditions[j].LastTransitionTime
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return t1.Time.Before(t2.Time)
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})
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return &res, nil
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}
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func (d *DataLayer) GetResourceYAML(namespace string, def *v1.Carp) (string, error) {
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out, err := d.runCommandKubectl("get", strings.ToLower(def.Kind), def.Name, "--namespace", namespace, "--output", "yaml")
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if err != nil {
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return "", err
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}
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return out, nil
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}
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func (d *DataLayer) DescribeResource(namespace string, kind string, name string) (string, error) {
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out, err := d.runCommandKubectl("describe", strings.ToLower(kind), name, "--namespace", namespace)
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if err != nil {
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return "", err
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}
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return out, nil
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}
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func (d *DataLayer) UninstallChart(namespace string, name string) error {
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_, err := d.runCommandHelm("uninstall", name, "--namespace", namespace)
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if err != nil {
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return err
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}
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return nil
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}
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func (d *DataLayer) Revert(namespace string, name string, rev int) error {
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_, err := d.runCommandHelm("rollback", name, strconv.Itoa(rev), "--namespace", namespace)
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if err != nil {
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return err
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}
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return nil
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}
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func (d *DataLayer) ChartRepoUpdate(name string) error {
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cmd := []string{"repo", "update"}
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if name != "" {
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cmd = append(cmd, name)
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}
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_, err := d.runCommandHelm(cmd...)
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if err != nil {
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return err
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}
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return nil
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}
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func (d *DataLayer) ChartUpgrade(namespace string, name string, repoChart string, version string, justTemplate bool, values string) (string, error) {
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if values == "" {
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oldVals, err := d.RevisionValues(namespace, name, 0, true)
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if err != nil {
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return "", err
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}
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values = oldVals
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}
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oldValsFile, close1, err := utils.TempFile(values)
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defer close1()
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if err != nil {
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return "", err
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}
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cmd := []string{"upgrade", name, repoChart, "--version", version, "--namespace", namespace, "--values", oldValsFile, "--output", "json"}
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if justTemplate {
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cmd = append(cmd, "--dry-run")
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}
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out, err := d.runCommandHelm(cmd...)
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if err != nil {
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return "", err
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}
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res := release.Release{}
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err = json.Unmarshal([]byte(out), &res)
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if err != nil {
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return "", err
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}
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if justTemplate {
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out = strings.TrimSpace(res.Manifest)
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}
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return out, nil
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}
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func (d *DataLayer) ShowValues(chart string, ver string) (string, error) {
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return d.runCommandHelm("show", "values", chart, "--version", ver)
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}
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func RevisionDiff(functor SectionFn, ext string, namespace string, name string, revision1 int, revision2 int, flag bool) (string, error) {
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if revision1 == 0 || revision2 == 0 {
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log.Debugf("One of revisions is zero: %d %d", revision1, revision2)
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return "", nil
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}
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manifest1, err := functor(namespace, name, revision1, flag)
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if err != nil {
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return "", err
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}
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manifest2, err := functor(namespace, name, revision2, flag)
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if err != nil {
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return "", err
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}
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diff := GetDiff(manifest1, manifest2, strconv.Itoa(revision1)+ext, strconv.Itoa(revision2)+ext)
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return diff, nil
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}
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func GetDiff(text1 string, text2 string, name1 string, name2 string) string {
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edits := myers.ComputeEdits(span.URIFromPath(""), text1, text2)
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unified := gotextdiff.ToUnified(name1, name2, text1, edits)
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diff := fmt.Sprint(unified)
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log.Debugf("The diff is: %s", diff)
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return diff
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}
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Reference in New Issue
Block a user