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rendered_contents.go
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/
rendered_contents.go
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package handlers
import (
"io/ioutil"
"net/http"
"os"
"strconv"
"github.com/gorilla/mux"
"github.com/pkg/errors"
"github.com/replicatedhq/kots/pkg/kotsutil"
"github.com/replicatedhq/kots/pkg/kustomize"
"github.com/replicatedhq/kots/pkg/logger"
"github.com/replicatedhq/kots/pkg/store"
storetypes "github.com/replicatedhq/kots/pkg/store/types"
)
type GetAppRenderedContentsResponse struct {
Files map[string]string `json:"files"`
}
type GetAppRenderedContentsErrorResponse struct {
Error string `json:"error"`
}
func (h *Handler) GetAppRenderedContents(w http.ResponseWriter, r *http.Request) {
appSlug := mux.Vars(r)["appSlug"]
sequence, err := strconv.Atoi(mux.Vars(r)["sequence"])
if err != nil {
logger.Error(errors.Wrap(err, "failed to parse sequence number"))
w.WriteHeader(http.StatusBadRequest)
return
}
a, err := store.GetStore().GetAppFromSlug(appSlug)
if err != nil {
logger.Error(errors.Wrap(err, "failed to get app from slug"))
w.WriteHeader(http.StatusInternalServerError)
return
}
status, err := store.GetStore().GetDownstreamVersionStatus(a.ID, int64(sequence))
if err != nil {
logger.Error(errors.Wrap(err, "failed to get downstream version status"))
w.WriteHeader(http.StatusInternalServerError)
return
}
if status == storetypes.VersionPendingDownload {
logger.Error(errors.Errorf("not returning rendered contents for version %d because it's %s", sequence, status))
w.WriteHeader(http.StatusBadRequest)
return
}
archivePath, err := ioutil.TempDir("", "kotsadm")
if err != nil {
logger.Error(errors.Wrap(err, "failed to create temp dir"))
w.WriteHeader(http.StatusInternalServerError)
return
}
defer os.RemoveAll(archivePath)
err = store.GetStore().GetAppVersionArchive(a.ID, int64(sequence), archivePath)
if err != nil {
logger.Error(errors.Wrap(err, "failed to get app version archive"))
w.WriteHeader(http.StatusInternalServerError)
return
}
kotsKinds, err := kotsutil.LoadKotsKindsFromPath(archivePath)
if err != nil {
logger.Error(errors.Wrap(err, "failed to load kots kinds from path"))
w.WriteHeader(http.StatusInternalServerError)
return
}
downstreams, err := store.GetStore().ListDownstreamsForApp(a.ID)
if err != nil {
logger.Error(errors.Wrapf(err, "failed to list downstreams for app %q", a.Slug))
w.WriteHeader(http.StatusInternalServerError)
return
}
if len(downstreams) == 0 {
logger.Error(errors.Errorf("no downstreams found for app %q", a.Slug))
w.WriteHeader(http.StatusInternalServerError)
return
}
d := downstreams[0]
_, appFilesMap, err := kustomize.GetRenderedApp(archivePath, d.Name, kotsKinds.GetKustomizeBinaryPath())
if err != nil {
logger.Error(errors.Wrap(err, "failed to get rendered app"))
w.WriteHeader(http.StatusInternalServerError)
return
}
_, chartsFilesMap, err := kustomize.GetRenderedChartsArchive(archivePath, d.Name, kotsKinds.GetKustomizeBinaryPath())
if err != nil {
logger.Error(errors.Wrap(err, "failed to get kustomized files"))
w.WriteHeader(http.StatusInternalServerError)
return
}
responseFiles := map[string]string{}
for filename, content := range appFilesMap {
responseFiles[filename] = string(content)
}
for filename, content := range chartsFilesMap {
responseFiles[filename] = string(content)
}
JSON(w, http.StatusOK, GetAppRenderedContentsResponse{
Files: responseFiles,
})
}