478 lines
15 KiB
Go
478 lines
15 KiB
Go
package main
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import (
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"bytes"
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path"
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"regexp"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/Masterminds/semver/v3"
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"github.com/codeclysm/extract"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/api/types/mount"
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"github.com/docker/docker/api/types/volume"
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"github.com/docker/docker/client"
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"github.com/docker/go-connections/nat"
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)
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var (
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flagTempDir = flag.String("tmp", "tmp", "Path to temporary directory to dump tarballs to")
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flagFrom = flag.String("from", "HEAD-1", "The version to start from e.g '0.3.1'. If 'HEAD-N' then starts N versions behind HEAD.")
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flagTo = flag.String("to", "HEAD", "The version to end on e.g '0.3.3'.")
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flagBuildConcurrency = flag.Int("build-concurrency", runtime.NumCPU(), "The amount of build concurrency when building images")
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alphaNumerics = regexp.MustCompile("[^a-zA-Z0-9]+")
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)
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// Embed the Dockerfile to use when building dendrite versions.
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// We cannot use the dockerfile associated with the repo with each version sadly due to changes in
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// Docker versions. Specifically, earlier Dendrite versions are incompatible with newer Docker clients
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// due to the error:
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// When using COPY with more than one source file, the destination must be a directory and end with a /
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// We need to run a postgres anyway, so use the dockerfile associated with Complement instead.
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const Dockerfile = `FROM golang:1.13-stretch as build
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RUN apt-get update && apt-get install -y postgresql
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WORKDIR /build
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# Copy the build context to the repo as this is the right dendrite code. This is different to the
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# Complement Dockerfile which wgets a branch.
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COPY . .
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RUN go build ./cmd/dendrite-monolith-server
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RUN go build ./cmd/generate-keys
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RUN go build ./cmd/generate-config
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RUN ./generate-config --ci > dendrite.yaml
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RUN ./generate-keys --private-key matrix_key.pem --tls-cert server.crt --tls-key server.key
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# Replace the connection string with a single postgres DB, using user/db = 'postgres' and no password
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RUN sed -i "s%connection_string:.*$%connection_string: postgresql://postgres@localhost/postgres?sslmode=disable%g" dendrite.yaml
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# No password when connecting over localhost
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RUN sed -i "s%127.0.0.1/32 md5%127.0.0.1/32 trust%g" /etc/postgresql/9.6/main/pg_hba.conf
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# Bump up max conns for moar concurrency
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RUN sed -i 's/max_connections = 100/max_connections = 2000/g' /etc/postgresql/9.6/main/postgresql.conf
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RUN sed -i 's/max_open_conns:.*$/max_open_conns: 100/g' dendrite.yaml
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# This entry script starts postgres, waits for it to be up then starts dendrite
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RUN echo '\
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#!/bin/bash -eu \n\
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pg_lsclusters \n\
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pg_ctlcluster 9.6 main start \n\
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\n\
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until pg_isready \n\
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do \n\
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echo "Waiting for postgres"; \n\
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sleep 1; \n\
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done \n\
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\n\
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sed -i "s/server_name: localhost/server_name: ${SERVER_NAME}/g" dendrite.yaml \n\
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./dendrite-monolith-server --tls-cert server.crt --tls-key server.key --config dendrite.yaml \n\
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' > run_dendrite.sh && chmod +x run_dendrite.sh
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ENV SERVER_NAME=localhost
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EXPOSE 8008 8448
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CMD /build/run_dendrite.sh `
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const dendriteUpgradeTestLabel = "dendrite_upgrade_test"
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// downloadArchive downloads an arbitrary github archive of the form:
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// https://github.com/matrix-org/dendrite/archive/v0.3.11.tar.gz
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// and re-tarballs it without the top-level directory which contains branch information. It inserts
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// the contents of `dockerfile` as a root file `Dockerfile` in the re-tarballed directory such that
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// you can directly feed the retarballed archive to `ImageBuild` to have it run said dockerfile.
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// Returns the tarball buffer on success.
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func downloadArchive(cli *http.Client, tmpDir, archiveURL string, dockerfile []byte) (*bytes.Buffer, error) {
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resp, err := cli.Get(archiveURL)
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if err != nil {
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return nil, err
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}
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// nolint:errcheck
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defer resp.Body.Close()
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if resp.StatusCode != 200 {
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return nil, fmt.Errorf("got HTTP %d", resp.StatusCode)
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}
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if err = os.Mkdir(tmpDir, os.ModePerm); err != nil {
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return nil, fmt.Errorf("failed to make temporary directory: %s", err)
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}
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// nolint:errcheck
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defer os.RemoveAll(tmpDir)
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// dump the tarball temporarily, stripping the top-level directory
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err = extract.Archive(context.Background(), resp.Body, tmpDir, func(inPath string) string {
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// remove top level
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segments := strings.Split(inPath, "/")
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return strings.Join(segments[1:], "/")
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})
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if err != nil {
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return nil, err
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}
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// add top level Dockerfile
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err = ioutil.WriteFile(path.Join(tmpDir, "Dockerfile"), dockerfile, os.ModePerm)
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if err != nil {
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return nil, fmt.Errorf("failed to inject /Dockerfile: %w", err)
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}
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// now re-tarball it :/
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var tarball bytes.Buffer
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err = compress(tmpDir, &tarball)
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if err != nil {
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return nil, err
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}
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return &tarball, nil
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}
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// buildDendrite builds Dendrite on the branchOrTagName given. Returns the image ID or an error
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func buildDendrite(httpClient *http.Client, dockerClient *client.Client, tmpDir, branchOrTagName string) (string, error) {
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log.Printf("%s: Downloading version %s to %s\n", branchOrTagName, branchOrTagName, tmpDir)
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// pull an archive, this contains a top-level directory which screws with the build context
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// which we need to fix up post download
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u := fmt.Sprintf("https://github.com/matrix-org/dendrite/archive/%s.tar.gz", branchOrTagName)
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tarball, err := downloadArchive(httpClient, tmpDir, u, []byte(Dockerfile))
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if err != nil {
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return "", fmt.Errorf("failed to download archive %s: %w", u, err)
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}
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log.Printf("%s: %s => %d bytes\n", branchOrTagName, u, tarball.Len())
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log.Printf("%s: Building version %s\n", branchOrTagName, branchOrTagName)
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res, err := dockerClient.ImageBuild(context.Background(), tarball, types.ImageBuildOptions{
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Tags: []string{"dendrite-upgrade"},
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})
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if err != nil {
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return "", fmt.Errorf("failed to start building image: %s", err)
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}
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// nolint:errcheck
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defer res.Body.Close()
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decoder := json.NewDecoder(res.Body)
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// {"aux":{"ID":"sha256:247082c717963bc2639fc2daed08838d67811ea12356cd4fda43e1ffef94f2eb"}}
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var imageID string
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for decoder.More() {
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var dl struct {
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Stream string `json:"stream"`
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Aux map[string]interface{} `json:"aux"`
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}
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if err := decoder.Decode(&dl); err != nil {
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return "", fmt.Errorf("failed to decode build image output line: %w", err)
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}
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log.Printf("%s: %s", branchOrTagName, dl.Stream)
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if dl.Aux != nil {
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imgID, ok := dl.Aux["ID"]
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if ok {
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imageID = imgID.(string)
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}
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}
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}
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return imageID, nil
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}
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func getAndSortVersionsFromGithub(httpClient *http.Client) (semVers []*semver.Version, err error) {
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u := "https://api.github.com/repos/matrix-org/dendrite/tags"
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res, err := httpClient.Get(u)
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if err != nil {
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return nil, err
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}
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if res.StatusCode != 200 {
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return nil, fmt.Errorf("%s returned HTTP %d", u, res.StatusCode)
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}
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resp := []struct {
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Name string `json:"name"`
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}{}
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if err = json.NewDecoder(res.Body).Decode(&resp); err != nil {
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return nil, err
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}
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for _, r := range resp {
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v, err := semver.NewVersion(r.Name)
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if err != nil {
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continue // not a semver, that's ok and isn't an error, we allow tags that aren't semvers
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}
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semVers = append(semVers, v)
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}
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sort.Sort(semver.Collection(semVers))
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return semVers, nil
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}
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func calculateVersions(cli *http.Client, from, to string) []string {
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semvers, err := getAndSortVersionsFromGithub(cli)
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if err != nil {
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log.Fatalf("failed to collect semvers from github: %s", err)
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}
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// snip the lower bound depending on --from
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if from != "" {
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if strings.HasPrefix(from, "HEAD-") {
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var headN int
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headN, err = strconv.Atoi(strings.TrimPrefix(from, "HEAD-"))
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if err != nil {
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log.Fatalf("invalid --from, try 'HEAD-1'")
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}
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if headN >= len(semvers) {
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log.Fatalf("only have %d versions, but asked to go to HEAD-%d", len(semvers), headN)
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}
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if headN > 0 {
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semvers = semvers[len(semvers)-headN:]
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}
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} else {
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fromVer, err := semver.NewVersion(from)
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if err != nil {
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log.Fatalf("invalid --from: %s", err)
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}
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i := 0
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for i = 0; i < len(semvers); i++ {
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if semvers[i].LessThan(fromVer) {
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continue
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}
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break
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}
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semvers = semvers[i:]
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}
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}
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if to != "" && to != "HEAD" {
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toVer, err := semver.NewVersion(to)
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if err != nil {
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log.Fatalf("invalid --to: %s", err)
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}
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var i int
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for i = len(semvers) - 1; i >= 0; i-- {
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if semvers[i].GreaterThan(toVer) {
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continue
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}
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break
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}
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semvers = semvers[:i+1]
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}
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var versions []string
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for _, sv := range semvers {
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versions = append(versions, sv.Original())
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}
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if to == "HEAD" {
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versions = append(versions, "HEAD")
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}
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return versions
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}
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func buildDendriteImages(httpClient *http.Client, dockerClient *client.Client, baseTempDir string, concurrency int, branchOrTagNames []string) map[string]string {
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// concurrently build all versions, this can be done in any order. The mutex protects the map
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branchToImageID := make(map[string]string)
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var mu sync.Mutex
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var wg sync.WaitGroup
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wg.Add(concurrency)
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ch := make(chan string, len(branchOrTagNames))
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for _, branchName := range branchOrTagNames {
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ch <- branchName
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}
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close(ch)
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for i := 0; i < concurrency; i++ {
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go func() {
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defer wg.Done()
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for branchName := range ch {
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tmpDir := baseTempDir + alphaNumerics.ReplaceAllString(branchName, "")
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imgID, err := buildDendrite(httpClient, dockerClient, tmpDir, branchName)
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if err != nil {
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log.Fatalf("%s: failed to build dendrite image: %s", branchName, err)
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}
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mu.Lock()
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branchToImageID[branchName] = imgID
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mu.Unlock()
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}
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}()
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}
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wg.Wait()
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return branchToImageID
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}
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func runImage(dockerClient *client.Client, volumeName, version, imageID string) (csAPIURL, containerID string, err error) {
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log.Printf("%s: running image %s\n", version, imageID)
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Minute)
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defer cancel()
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body, err := dockerClient.ContainerCreate(ctx, &container.Config{
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Image: imageID,
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Env: []string{"SERVER_NAME=hs1"},
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Labels: map[string]string{
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dendriteUpgradeTestLabel: "yes",
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},
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}, &container.HostConfig{
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PublishAllPorts: true,
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Mounts: []mount.Mount{
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{
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Type: mount.TypeVolume,
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Source: volumeName,
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Target: "/var/lib/postgresql/9.6/main",
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},
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},
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}, nil, nil, "dendrite_upgrade_test_"+version)
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if err != nil {
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return "", "", fmt.Errorf("failed to ContainerCreate: %s", err)
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}
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containerID = body.ID
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err = dockerClient.ContainerStart(ctx, containerID, types.ContainerStartOptions{})
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if err != nil {
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return "", "", fmt.Errorf("failed to ContainerStart: %s", err)
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}
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inspect, err := dockerClient.ContainerInspect(ctx, containerID)
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if err != nil {
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return "", "", err
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}
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csapiPortInfo, ok := inspect.NetworkSettings.Ports[nat.Port("8008/tcp")]
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if !ok {
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return "", "", fmt.Errorf("port 8008 not exposed - exposed ports: %v", inspect.NetworkSettings.Ports)
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}
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baseURL := fmt.Sprintf("http://localhost:%s", csapiPortInfo[0].HostPort)
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versionsURL := fmt.Sprintf("%s/_matrix/client/versions", baseURL)
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// hit /versions to check it is up
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var lastErr error
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for i := 0; i < 500; i++ {
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res, err := http.Get(versionsURL)
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if err != nil {
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lastErr = fmt.Errorf("GET %s => error: %s", versionsURL, err)
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time.Sleep(50 * time.Millisecond)
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continue
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}
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if res.StatusCode != 200 {
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lastErr = fmt.Errorf("GET %s => HTTP %s", versionsURL, res.Status)
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time.Sleep(50 * time.Millisecond)
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continue
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}
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lastErr = nil
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break
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}
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if lastErr != nil {
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logs, err := dockerClient.ContainerLogs(context.Background(), containerID, types.ContainerLogsOptions{
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ShowStdout: true,
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ShowStderr: true,
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})
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// ignore errors when cannot get logs, it's just for debugging anyways
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if err == nil {
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logbody, err := ioutil.ReadAll(logs)
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if err == nil {
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log.Printf("Container logs:\n\n%s\n\n", string(logbody))
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}
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}
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}
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return baseURL, containerID, lastErr
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}
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func destroyContainer(dockerClient *client.Client, containerID string) {
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err := dockerClient.ContainerRemove(context.TODO(), containerID, types.ContainerRemoveOptions{
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Force: true,
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})
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if err != nil {
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log.Printf("failed to remove container %s : %s", containerID, err)
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}
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}
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func loadAndRunTests(dockerClient *client.Client, volumeName, v string, branchToImageID map[string]string) error {
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csAPIURL, containerID, err := runImage(dockerClient, volumeName, v, branchToImageID[v])
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if err != nil {
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return fmt.Errorf("failed to run container for branch %v: %v", v, err)
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}
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defer destroyContainer(dockerClient, containerID)
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log.Printf("URL %s -> %s \n", csAPIURL, containerID)
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if err = runTests(csAPIURL, v); err != nil {
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return fmt.Errorf("failed to run tests on version %s: %s", v, err)
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}
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return nil
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}
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func verifyTests(dockerClient *client.Client, volumeName string, versions []string, branchToImageID map[string]string) error {
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lastVer := versions[len(versions)-1]
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csAPIURL, containerID, err := runImage(dockerClient, volumeName, lastVer, branchToImageID[lastVer])
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if err != nil {
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return fmt.Errorf("failed to run container for branch %v: %v", lastVer, err)
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}
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defer destroyContainer(dockerClient, containerID)
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return verifyTestsRan(csAPIURL, versions)
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}
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// cleanup old containers/volumes from a previous run
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func cleanup(dockerClient *client.Client) {
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// ignore all errors, we are just cleaning up and don't want to fail just because we fail to cleanup
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containers, _ := dockerClient.ContainerList(context.Background(), types.ContainerListOptions{
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Filters: label(dendriteUpgradeTestLabel),
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})
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for _, c := range containers {
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s := time.Second
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_ = dockerClient.ContainerStop(context.Background(), c.ID, &s)
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_ = dockerClient.ContainerRemove(context.Background(), c.ID, types.ContainerRemoveOptions{
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Force: true,
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})
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}
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_ = dockerClient.VolumeRemove(context.Background(), "dendrite_upgrade_test", true)
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}
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func label(in string) filters.Args {
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f := filters.NewArgs()
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f.Add("label", in)
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return f
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}
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func main() {
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flag.Parse()
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httpClient := &http.Client{
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Timeout: 60 * time.Second,
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}
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dockerClient, err := client.NewClientWithOpts(client.FromEnv)
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if err != nil {
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log.Fatalf("failed to make docker client: %s", err)
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}
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if *flagFrom == "" {
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flag.Usage()
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os.Exit(1)
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}
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cleanup(dockerClient)
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versions := calculateVersions(httpClient, *flagFrom, *flagTo)
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log.Printf("Testing dendrite versions: %v\n", versions)
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branchToImageID := buildDendriteImages(httpClient, dockerClient, *flagTempDir, *flagBuildConcurrency, versions)
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// make a shared postgres volume
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volume, err := dockerClient.VolumeCreate(context.Background(), volume.VolumeCreateBody{
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Name: "dendrite_upgrade_test",
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Labels: map[string]string{
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dendriteUpgradeTestLabel: "yes",
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},
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})
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if err != nil {
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log.Fatalf("failed to make docker volume: %s", err)
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}
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failed := false
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defer func() {
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perr := recover()
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log.Println("removing postgres volume")
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verr := dockerClient.VolumeRemove(context.Background(), volume.Name, true)
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if perr == nil {
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perr = verr
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}
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if perr != nil {
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panic(perr)
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}
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if failed {
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os.Exit(1)
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}
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}()
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// run through images sequentially
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for _, v := range versions {
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if err = loadAndRunTests(dockerClient, volume.Name, v, branchToImageID); err != nil {
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log.Printf("failed to run tests for %v: %s\n", v, err)
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failed = true
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break
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}
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}
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if err := verifyTests(dockerClient, volume.Name, versions, branchToImageID); err != nil {
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log.Printf("failed to verify test results: %s", err)
|
|
failed = true
|
|
}
|
|
}
|