Squashed 'tools/' changes from b783528..1fe184f

1fe184f Bazel rules for building gogo protobufs (#123)
b917bb8 Merge pull request #122 from weaveworks/fix-scope-gc
c029ce0 Add regex to match scope VMs
0d4824b Merge pull request #121 from weaveworks/provisioning-readme-terraform
5a82d64 Move terraform instructions to tf section
d285d78 Merge pull request #120 from weaveworks/gocyclo-return-value
76b94a4 Do not spawn subshell when reading cyclo output
93b3c0d Use golang:1.9.2-stretch image
d40728f Gocyclo should return error code if issues detected
c4ac1c3 Merge pull request #114 from weaveworks/tune-spell-check
8980656 Only check files
12ebc73 Don't spell-check pki files
578904a Special-case spell-check the same way we do code checks
e772ed5 Special-case on mime type and extension using just patterns
ae82b50 Merge pull request #117 from weaveworks/test-verbose
8943473 Propagate verbose flag to 'go test'.
7c79b43 Merge pull request #113 from weaveworks/update-shfmt-instructions
258ef01 Merge pull request #115 from weaveworks/extra-linting
e690202 Use tools in built image to lint itself
126eb56 Add shellcheck to bring linting in line with scope
63ad68f Don't run lint on files under .git
51d908a Update shfmt instructions
e91cb0d Merge pull request #112 from weaveworks/add-python-lint-tools
0c87554 Add yapf and flake8 to golang build image
35679ee Merge pull request #110 from weaveworks/parallel-push-errors
3ae41b6 Remove unneeded if block
51ff31a Exit on first error
0faad9f Check for errors when pushing images in parallel
74dc626 Merge pull request #108 from weaveworks/disable-apt-daily
b4f1d91 Merge pull request #107 from weaveworks/docker-17-update
7436aa1 Override apt daily job to not run immediately on boot
7980f15 Merge pull request #106 from weaveworks/document-docker-install-role
f741e53 Bump to Docker 17.06 from CE repo
61796a1 Update Docker CE Debian repo details
0d86f5e Allow for Docker package to be named docker-ce
065c68d Document selection of Docker installation role.
3809053 Just --porcelain; it defaults to v1
11400ea Merge pull request #105 from weaveworks/remove-weaveplugin-remnants
b8b4d64 remove weaveplugin remnants
35099c9 Merge pull request #104 from weaveworks/pull-docker-py
cdd48fc Pull docker-py to speed tests/builds up.
e1c6c24 Merge pull request #103 from weaveworks/test-build-tags
d5d71e0 Add -tags option so callers can pass in build tags
8949b2b Merge pull request #98 from weaveworks/git-status-tag
ac30687 Merge pull request #100 from weaveworks/python_linting
4b125b5 Pin yapf & flake8 versions
7efb485 Lint python linting function
444755b Swap diff direction to reflect changes required
c5b2434 Install flake8 & yapf
5600eac Lint python in build-tools repo
0b02ca9 Add python linting
c011c0d Merge pull request #79 from kinvolk/schu/python-shebang
6577d07 Merge pull request #99 from weaveworks/shfmt-version
00ce0dc Use git status instead of diff to add 'WIP' tag
411fd13 Use shfmt v1.3.0 instead of latest from master.
0d6d4da Run shfmt 1.3 on the code.
5cdba32 Add sudo
c322ca8 circle.yml: Install shfmt binary.
e59c225 Install shfmt 1.3 binary.
30706e6 Install pyhcl in the build container.
960d222 Merge pull request #97 from kinvolk/alban/update-shfmt-3
1d535c7 shellcheck: fix escaping issue
5542498 Merge pull request #96 from kinvolk/alban/update-shfmt-2
32f7cc5 shfmt: fix coding style
09f72af lint: print the diff in case of error
571c7d7 Merge pull request #95 from kinvolk/alban/update-shfmt
bead6ed Update for latest shfmt
b08dc4d Update for latest shfmt (#94)
2ed8aaa Add no-race argument to test script (#92)
80dd78e Merge pull request #91 from weaveworks/upgrade-go-1.8.1
08dcd0d Please ./lint as shfmt changed its rules between 1.0.0 and 1.3.0.
a8bc9ab Upgrade default Go version to 1.8.1.
41c5622 Merge pull request #90 from weaveworks/build-golang-service-conf
e8ebdd5 broaden imagetag regex to fix haskell build image
ba3fbfa Merge pull request #89 from weaveworks/build-golang-service-conf
e506f1b Fix up test script for updated shfmt
9216db8 Add stuff for service-conf build to build-goland image
66a9a93 Merge pull request #88 from weaveworks/haskell-image
cb3e3a2 shfmt
74a5239 Haskell build image
4ccd42b Trying circle quay login
b2c295f Merge branch 'common-build'
0ac746f Trim quay prefix in circle script
c405b31 Merge pull request #87 from weaveworks/common-build
9672d7c Push build images to quay as they have sane robot accounts
a2bf112 Review feedback
fef9b7d Add protobuf tools
10a77ea Update readme
254f266 Don't need the image name in
ffb59fc Adding a weaveworks/build-golang image with tags
b817368 Update min Weave Net docker version
cf87ca3 Merge pull request #86 from weaveworks/lock-kubeadm-version
3ae6919 Add example of custom SSH private key to tf_ssh's usage.
cf8bd8a Add example of custom SSH private key to tf_ansi's usage.
c7d3370 Lock kubeadm's Kubernetes version.
faaaa6f Merge pull request #84 from weaveworks/centos-rhel
ef552e7 Select weave-kube YAML URL based on K8S version.
b4c1198 Upgrade default kubernetes_version to 1.6.1.
b82805e Use a fixed version of kubeadm.
f33888b Factorise and make kubeconfig option optional.
f7b8b89 Install EPEL repo for CentOS.
615917a Fix error in decrypting AWS access key and secret.
86f97b4 Add CentOS 7 AMI and username for AWS via Terraform.
eafd810 Add tf_ansi example with Ansible variables.
2b05787 Skip setup of Docker over TCP for CentOS/RHEL.
84c420b Add docker-ce role for CentOS/RHEL.
00a820c Add setup_weave-net_debug.yml playbook for user issues' debugging.
3eae480 Upgrade default kubernetes_version to 1.5.4.
753921c Allow injection of Docker installation role.
e1ff90d Fix kubectl taint command for 1.5.
b989e97 Fix typo in kubectl taint for single node K8S cluster.
541f58d Remove 'install_recommends: no' for ethtool.
c3f9711 Make Ansible role docker-from-get.docker.com work on RHEL/CentOS.
038c0ae Add frequently used OS images, for convenience.
d30649f Add --insecure-registry to docker.conf
1dd9218 shfmt -i 4 -w push-images
6de96ac Add option to not push docker hub images
310f53d Add push-images script from cortex
8641381 Add port 6443 to kubeadm join commands for K8S 1.6+.
50bf0bc Force type of K8S token to string.
08ab1c0 Remove trailing whitespaces.
ae9efb8 Enable testing against K8S release candidates.
9e32194 Secure GCP servers for Scope: open port 80.
a22536a Secure GCP servers for Scope.
89c3a29 Merge pull request #78 from weaveworks/lint-merge-rebase-issue-in-docs
73ad56d Add linter function to avoid bad merge/rebase artefact
31d069d Change Python shebang to `#!/usr/bin/env python`
52d695c Merge pull request #77 from kinvolk/schu/fix-relative-weave-path
77aed01 Merge pull request #73 from weaveworks/mike/sched/fix-unicode-issue
7c080f4 integration/sanity_check: disable SC1090
d6d360a integration/gce.sh: update gcloud command
e8def2c provisioning/setup: fix shellcheck SC2140
cc02224 integration/config: fix weave path
9c0d6a5 Fix config_management/README.md
334708c Merge pull request #75 from kinvolk/alban/external-build-1
da2505d gce.sh: template: print creation date
e676854 integration tests: fix user account
8530836 host nameing: add repo name
b556c0a gce.sh: fix deletion of gce instances
2ecd1c2 integration: fix GCE --zones/--zone parameter
3e863df sched: Fix unicode encoding issues
51785b5 Use rm -f and set current dir using BASH_SOURCE.
f5c6d68 Merge pull request #71 from kinvolk/schu/fix-linter-warnings
0269628 Document requirement for `lint_sh`
9a3f09e Fix linter warnings
efcf9d2 Merge pull request #53 from weaveworks/2647-testing-mvp
d31ea57 Weave Kube playbook now works with multiple nodes.
27868dd Add GCP firewall rule for FastDP crypto.
edc8bb3 Differentiated name of dev and test playbooks, to avoid confusion.
efa3df7 Moved utility Ansible Yaml to library directory.
fcd2769 Add shorthands to run Ansible playbooks against Terraform-provisioned virtual machines.
f7946fb Add shorthands to SSH into Terraform-provisioned virtual machines.
aad5c6f Mention Terraform and Ansible in README.md.
dddabf0 Add Terraform output required for templates' creation.
dcc7d02 Add Ansible configuration playbooks for development environments.
f86481c Add Ansible configuration playbooks for Docker, K8S and Weave-Net.
efedd25 Git-ignore Ansible retry files.
765c4ca Add helper functions to setup Terraform programmatically.
801dd1d Add Terraform cloud provisioning scripts.
b8017e1 Install hclfmt on CircleCI.
4815e19 Git-ignore Terraform state files.
0aaebc7 Add script to generate cartesian product of dependencies of cross-version testing.
007d90a Add script to list OS images from GCP, AWS and DO.
ca65cc0 Add script to list relevant versions of Go, Docker and Kubernetes.
aa66f44 Scripts now source dependencies using absolute path (previously breaking make depending on current directory).
7865e86 Add -p option to parallelise lint.
36c1835 Merge pull request #69 from weaveworks/mflag
9857568 Use mflag and mflagext package from weaveworks/common.
9799112 Quote bash variable.
10a36b3 Merge pull request #67 from weaveworks/shfmt-ignore
a59884f Add support for .lintignore.
03cc598 Don't lint generated protobuf code.
2b55c2d Merge pull request #66 from weaveworks/reduce-test-timeout
d4e163c Make timeout a flag
49a8609 Reduce test timeout
8fa15cb Merge pull request #63 from weaveworks/test-defaults

git-subtree-dir: tools
git-subtree-split: 1fe184f1f5330c4444c4377bef84f2d30e7dc7fe

.gitignore

@@ -4,3 +4,7 @@ socks/image.tar
 runner/runner
 *.pyc
 *~
+terraform.tfstate
+terraform.tfstate.backup
+*.retry
+build/**/.uptodate

README.md

@@ -2,12 +2,18 @@
 
 Included in this repo are tools shared by weave.git and scope.git.  They include
 
+- ```bazel```: Bazel build rules used in our projects
+- ```build```: a set of docker base-images for building weave
+  projects. These should be used instead of giving each project its
+  own build image.
+- ```provisioning```: a set of Terraform scripts to provision virtual machines in GCP, AWS or Digital Ocean.
+- ```config_management```: a set of Ansible playbooks to configure virtual machines for development, testing, etc.
 - ```cover```: a tool which merges overlapping coverage reports generated by go
   test
 - ```files-with-type```: a tool to search directories for files of a given
   MIME type
-- ```lint```: a script to lint Go project; runs various tools like golint, go
-  vet, errcheck etc
+- ```lint```: a script to lint go, sh and hcl files; runs various tools like
+  golint, go vet, errcheck, shellcheck etc
 - ```rebuild-image```: a script to rebuild docker images when their input files
   change; useful when you using docker images to build your software, but you
   don't want to build the image every time.
@@ -24,6 +30,15 @@ Included in this repo are tools shared by weave.git and scope.git.  They include
 - ```scheduler```: an appengine application that can be used to distribute
   tests across different shards in CircleCI.
 
+## Requirements
+
+- ```lint``` requires shfmt to lint sh files; get shfmt with
+```
+curl -fsSLo shfmt https://github.com/mvdan/sh/releases/download/v1.3.0/shfmt_v1.3.0_linux_amd64
+chmod +x shfmt
+```
+  (we pin that version, and it doesn't build from the source repo any more)
+
 ## Using build-tools.git
 
 To allow you to tie your code to a specific version of build-tools.git, such

bazel/BUILD.bazel

@@ -0,0 +1,26 @@
+load("@io_bazel_rules_go//proto:compiler.bzl", "go_proto_compiler")
+
+go_proto_compiler(
+    name = "gogo_proto",
+    deps = [
+        "//vendor/github.com/gogo/protobuf/gogoproto:go_default_library",
+        "//vendor/github.com/gogo/protobuf/proto:go_default_library",
+        "//vendor/github.com/gogo/protobuf/sortkeys:go_default_library",
+    ],
+    plugin = "@com_github_gogo_protobuf//protoc-gen-gogoslick",
+    visibility = ["//visibility:public"],
+)
+
+go_proto_compiler(
+    name = "gogo_grpc",
+    deps = [
+        "//vendor/github.com/gogo/protobuf/gogoproto:go_default_library",
+        "//vendor/github.com/gogo/protobuf/proto:go_default_library",
+        "//vendor/github.com/gogo/protobuf/sortkeys:go_default_library",
+        "//vendor/google.golang.org/grpc:go_default_library",
+        "//vendor/golang.org/x/net/context:go_default_library",
+    ],
+    plugin = "@com_github_gogo_protobuf//protoc-gen-gogoslick",
+    options = ["plugins=grpc"],
+    visibility = ["//visibility:public"],
+)

bazel/gogo.bzl

@@ -0,0 +1,36 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_repository")
+
+
+_BUILD_FILE = """
+proto_library(
+    name = "gogoproto",
+    srcs = ["gogo.proto"],
+    deps = [
+        "@com_google_protobuf//:descriptor_proto",
+    ],
+    visibility = ["//visibility:public"],
+)
+"""
+
+def _go_repository_impl(ctx):
+  ctx.file("BUILD.bazel", content="")
+  ctx.file("github.com/gogo/protobuf/gogoproto/BUILD.bazel", content=_BUILD_FILE)
+  ctx.template("github.com/gogo/protobuf/gogoproto/gogo.proto", ctx.attr._proto)
+
+_gogo_proto_repository = repository_rule(
+    implementation = _go_repository_impl,
+    attrs = {
+        "_proto": attr.label(default="//vendor/github.com/gogo/protobuf/gogoproto:gogo.proto"),
+    },
+)
+
+def gogo_dependencies():
+  go_repository(
+      name = "com_github_gogo_protobuf",
+      importpath = "github.com/gogo/protobuf",
+      urls = ["https://codeload.github.com/ianthehat/protobuf/zip/2adc21fd136931e0388e278825291678e1d98309"],
+      strip_prefix = "protobuf-2adc21fd136931e0388e278825291678e1d98309",
+      type = "zip",
+      build_file_proto_mode="disable",
+  )
+  _gogo_proto_repository(name = "internal_gogo_proto_repository")

build/Makefile

@@ -0,0 +1,46 @@
+.PHONY: all clean images
+.DEFAULT_GOAL := all
+
+# Boiler plate for bulding Docker containers.
+# All this must go at top of file I'm afraid.
+IMAGE_PREFIX := quay.io/weaveworks/build-
+IMAGE_TAG := $(shell ../image-tag)
+UPTODATE := .uptodate
+
+# Every directory with a Dockerfile in it builds an image called
+# $(IMAGE_PREFIX)<dirname>. Dependencies (i.e. things that go in the image)
+# still need to be explicitly declared.
+%/$(UPTODATE): %/Dockerfile %/*
+	$(SUDO) docker build -t $(IMAGE_PREFIX)$(shell basename $(@D)) $(@D)/
+	$(SUDO) docker tag $(IMAGE_PREFIX)$(shell basename $(@D)) $(IMAGE_PREFIX)$(shell basename $(@D)):$(IMAGE_TAG)
+	touch $@
+
+# Get a list of directories containing Dockerfiles
+DOCKERFILES := $(shell find . -name tools -prune -o -name vendor -prune -o -type f -name 'Dockerfile' -print)
+UPTODATE_FILES := $(patsubst %/Dockerfile,%/$(UPTODATE),$(DOCKERFILES))
+DOCKER_IMAGE_DIRS := $(patsubst %/Dockerfile,%,$(DOCKERFILES))
+IMAGE_NAMES := $(foreach dir,$(DOCKER_IMAGE_DIRS),$(patsubst %,$(IMAGE_PREFIX)%,$(shell basename $(dir))))
+images:
+	$(info $(IMAGE_NAMES))
+	@echo > /dev/null
+
+# Define imagetag-golang, etc, for each image, which parses the dockerfile and
+# prints an image tag. For example:
+#     FROM golang:1.8.1-stretch
+# in the "foo/Dockerfile" becomes:
+#     $ make imagetag-foo
+#     1.8.1-stretch
+define imagetag_dep
+.PHONY: imagetag-$(1)
+$(patsubst $(IMAGE_PREFIX)%,imagetag-%,$(1)): $(patsubst $(IMAGE_PREFIX)%,%,$(1))/Dockerfile
+	@cat $$< | grep "^FROM " | head -n1 | sed 's/FROM \(.*\):\(.*\)/\2/'
+endef
+$(foreach image, $(IMAGE_NAMES), $(eval $(call imagetag_dep, $(image))))
+
+all: $(UPTODATE_FILES)
+
+clean:
+	$(SUDO) docker rmi $(IMAGE_NAMES) >/dev/null 2>&1 || true
+	rm -rf $(UPTODATE_FILES)
+
+

build/golang/Dockerfile

@@ -0,0 +1,50 @@
+FROM golang:1.9.2-stretch
+RUN apt-get update && \
+    apt-get install -y \
+      curl \
+      file \
+      git \
+      jq \
+      libprotobuf-dev \
+      make \
+      protobuf-compiler \
+      python-pip \
+      python-requests \
+      python-yaml \
+      shellcheck \
+      unzip && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN pip install attrs pyhcl yapf==0.16.2 flake8==3.3.0
+RUN curl -fsSLo shfmt https://github.com/mvdan/sh/releases/download/v1.3.0/shfmt_v1.3.0_linux_amd64 && \
+	echo "b1925c2c405458811f0c227266402cf1868b4de529f114722c2e3a5af4ac7bb2  shfmt" | sha256sum -c && \
+	chmod +x shfmt && \
+	mv shfmt /usr/bin
+RUN go clean -i net && \
+	go install -tags netgo std && \
+	go install -race -tags netgo std
+RUN go get -tags netgo \
+		github.com/FiloSottile/gvt \
+		github.com/client9/misspell/cmd/misspell \
+		github.com/fatih/hclfmt \
+		github.com/fzipp/gocyclo \
+		github.com/gogo/protobuf/gogoproto \
+		github.com/gogo/protobuf/protoc-gen-gogoslick \
+		github.com/golang/dep/... \
+		github.com/golang/lint/golint \
+		github.com/golang/protobuf/protoc-gen-go \
+		github.com/kisielk/errcheck \
+		github.com/mjibson/esc \
+		github.com/prometheus/prometheus/cmd/promtool && \
+		rm -rf /go/pkg /go/src
+RUN mkdir protoc && \
+	cd protoc && \
+	curl -O -L https://github.com/google/protobuf/releases/download/v3.1.0/protoc-3.1.0-linux-x86_64.zip && \
+	unzip protoc-3.1.0-linux-x86_64.zip && \
+	cp bin/protoc /usr/bin/ && \
+	chmod o+x /usr/bin/protoc && \
+	cd .. && \
+	rm -rf protoc
+RUN mkdir -p /var/run/secrets/kubernetes.io/serviceaccount && \
+		touch /var/run/secrets/kubernetes.io/serviceaccount/token
+COPY build.sh /
+ENTRYPOINT ["/build.sh"]

build/golang/build.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+set -eu
+
+if [ -n "${SRC_NAME:-}" ]; then
+    SRC_PATH=${SRC_PATH:-$GOPATH/src/$SRC_NAME}
+elif [ -z "${SRC_PATH:-}" ]; then
+    echo "Must set either \$SRC_NAME or \$SRC_PATH."
+    exit 1
+fi
+
+# If we run make directly, any files created on the bind mount
+# will have awkward ownership.  So we switch to a user with the
+# same user and group IDs as source directory.  We have to set a
+# few things up so that sudo works without complaining later on.
+uid=$(stat --format="%u" "$SRC_PATH")
+gid=$(stat --format="%g" "$SRC_PATH")
+echo "weave:x:$uid:$gid::$SRC_PATH:/bin/sh" >>/etc/passwd
+echo "weave:*:::::::" >>/etc/shadow
+echo "weave	ALL=(ALL)	NOPASSWD: ALL" >>/etc/sudoers
+
+su weave -c "PATH=$PATH make -C $SRC_PATH BUILD_IN_CONTAINER=false $*"

build/haskell/Dockerfile

@@ -0,0 +1,4 @@
+FROM fpco/stack-build:lts-8.9
+COPY build.sh /
+COPY copy-libraries /usr/local/bin/
+ENTRYPOINT ["/build.sh"]

build/haskell/build.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+#
+# Build a static Haskell binary using stack.
+
+set -eu
+
+if [ -z "${SRC_PATH:-}" ]; then
+    echo "Must set \$SRC_PATH."
+    exit 1
+fi
+
+make -C "$SRC_PATH" BUILD_IN_CONTAINER=false "$@"

build/haskell/copy-libraries

@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+# Copy dynamically linked libraries for a binary, so we can assemble a Docker
+# image.
+#
+# Run with:
+#   copy-libraries /path/to/binary /output/dir
+#
+# Dependencies:
+# - awk
+# - cp
+# - grep
+# - ldd
+# - mkdir
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+# Path to a Linux binary that we're going to run in the container.
+binary_path="${1}"
+# Path to directory to write the output to.
+output_dir="${2}"
+
+exe_name=$(basename "${binary_path}")
+
+# Identify linked libraries.
+libraries=($(ldd "${binary_path}" | awk '{print $(NF-1)}' | grep -v '=>'))
+# Add /bin/sh, which we need for Docker imports.
+libraries+=('/bin/sh')
+
+mkdir -p "${output_dir}"
+
+# Copy executable and all needed libraries into temporary directory.
+cp "${binary_path}" "${output_dir}/${exe_name}"
+for lib in "${libraries[@]}"; do
+    mkdir -p "${output_dir}/$(dirname "$lib")"
+    # Need -L to make sure we get actual libraries & binaries, not symlinks to
+    # them.
+    cp -L "${lib}" "${output_dir}/${lib}"
+done

circle.yml

@@ -13,18 +13,32 @@ dependencies:
     - go install -tags netgo std
     - mkdir -p $(dirname $SRCDIR)
     - cp -r $(pwd)/ $SRCDIR
-    - |
-      cd $SRCDIR;
-      go get \
-        github.com/fzipp/gocyclo \
-        github.com/golang/lint/golint \
-        github.com/kisielk/errcheck \
-        gopkg.in/mvdan/sh.v1/cmd/shfmt
 
 test:
   override:
-    - cd $SRCDIR; ./lint .
+    - |
+      cd $SRCDIR/build && \
+      make && \
+      docker run --rm -v "$SRCDIR:$SRCDIR" -w "$SRCDIR" --entrypoint sh quay.io/weaveworks/build-golang -c ./lint .
     - cd $SRCDIR/cover; make
     - cd $SRCDIR/socks; make
     - cd $SRCDIR/runner; make
 
+deployment:
+  snapshot:
+    branch: master
+    commands:
+      - docker login -e "$DOCKER_REGISTRY_EMAIL" -u "$DOCKER_REGISTRY_USER" -p "$DOCKER_REGISTRY_PASS" "$DOCKER_REGISTRY_URL"
+      - |
+        cd $SRCDIR/build;
+        for image in $(make images); do
+          # Tag the built images with the revision of this repo.
+          docker push "${image}:${GIT_TAG}"
+
+          # Tag the built images with something derived from the base images in
+          # their respective Dockerfiles. So "FROM golang:1.8.0-stretch" as a
+          # base image would lead to a tag of "1.8.0-stretch"
+          IMG_TAG=$(make "imagetag-${image#quay.io/weaveworks/build-}")
+          docker tag "${image}:latest" "${image}:${IMG_TAG}"
+          docker push "${image}:${IMG_TAG}"
+        done