feat(init): use versioned decision image

Fixes #493

Author: jcristau

src/taskgraph/main.py

@@ -859,7 +859,7 @@ def init_taskgraph(options):
             shutil.rmtree(tg_dir)
 
     # Populate some defaults from the current repository.
-    context = {"project_name": root.name}
+    context = {"project_name": root.name, "taskgraph_version": taskgraph.__version__}
 
     try:
         repo_url = repo.get_url(remote=repo.remote_name)  # type: ignore

template/cookiecutter.json

@@ -1,5 +1,6 @@
 {
     "project_name": "my-project",
+    "taskgraph_version": "{{ cookiecutter.taskgraph_version }}",
     "repo_host": ["github", "hgmo"],
     "repo_name": "my-repo",
     "project_slug": "{{ cookiecutter.repo_name.lower().replace(' ', '_').replace('-', '_') }}",

template/{{cookiecutter.project_name}}/taskcluster.github.yml

@@ -205,7 +205,6 @@ tasks:
                                     ${normProjectUpper}_HEAD_REF: '${short_head_ref}'
                                     ${normProjectUpper}_HEAD_REV: '${head_sha}'
                                     ${normProjectUpper}_REPOSITORY_TYPE: git
-                                    ${normProjectUpper}_PIP_REQUIREMENTS: taskcluster/requirements.txt
                                     REPOSITORIES:
                                         $json:
                                             ${normProject}: ${normProject}
@@ -225,7 +224,7 @@ tasks:
                           features:
                               taskclusterProxy: true
 
-                          image: mozillareleases/taskgraph:decision-c4ac262880970ca484105929e02dd12f00214d5f2603ab6ce4c0d17de5cd0280@sha256:2dd667994aa13fccdcdcede85c570a5eb4a5247e42875a9e95a135ef774ee469
+                          image: mozillareleases/taskgraph:decision-v{{ cookiecutter.taskgraph_version }}
                           maxRunTime: 1800
 
                           command:
@@ -241,12 +240,11 @@ tasks:
                                     then: >
                                         cd /builds/worker/checkouts/src &&
                                         ln -s /builds/worker/artifacts artifacts &&
-                                        pip3 install -r requirements/base.txt &&
-                                        ~/.local/bin/taskgraph action-callback
+                                        taskgraph action-callback
                                     else: >
                                         cd /builds/worker/checkouts/src &&
                                         ln -s /builds/worker/artifacts artifacts &&
-                                        ~/.local/bin/taskgraph decision
+                                        taskgraph decision
                                         --pushlog-id='0'
                                         --pushdate='0'
                                         --project='${project}'

template/{{cookiecutter.project_name}}/taskcluster.hgmo.yml

@@ -124,7 +124,6 @@ tasks:
                                     ${normProjectUpper}_HEAD_REF: '${head_ref}'
                                     ${normProjectUpper}_HEAD_REV: '${head_sha}'
                                     ${normProjectUpper}_REPOSITORY_TYPE: git
-                                    ${normProjectUpper}_PIP_REQUIREMENTS: taskcluster/requirements.txt
                                     REPOSITORIES:
                                         $json:
                                             ${normProject}: ${normProject}
@@ -141,10 +140,7 @@ tasks:
                       features:
                           taskclusterProxy: true
 
-                      # Note: This task is built server side without the context or tooling that
-                      # exist in tree so we must hard code the hash
-                      image:
-                          mozillareleases/taskgraph:decision-c4ac262880970ca484105929e02dd12f00214d5f2603ab6ce4c0d17de5cd0280@sha256:2dd667994aa13fccdcdcede85c570a5eb4a5247e42875a9e95a135ef774ee469
+                      image: mozillareleases/taskgraph:decision-v{{ cookiecutter.taskgraph_version }}
 
                       maxRunTime: 1800
 
@@ -163,10 +159,10 @@ tasks:
                                     then: >
                                         cd /builds/worker/checkouts/src &&
                                         ln -s /builds/worker/artifacts artifacts &&
-                                        ~/.local/bin/taskgraph action-callback
+                                        taskgraph action-callback
                                     else: >
                                         ln -s /builds/worker/artifacts artifacts &&
-                                        ~/.local/bin/taskgraph decision
+                                        taskgraph decision
                                         --pushlog-id='${push.pushlog_id}'
                                         --pushdate='${push.pushdate}'
                                         --project='${project}'