Merge pull request #5 from olcf/ci

First pass at adding CI

.github/dependabot.yml

@@ -0,0 +1,8 @@
+---
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/build-dev-image.yml

@@ -0,0 +1,24 @@
+---
+name: build-dev-image
+on: [workflow_dispatch]
+jobs:
+  build-dev-image:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to registry
+        uses: docker/login-action@v1
+        with:
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+          registry: ghcr.io
+      - name: Build dev image
+        uses: docker/build-push-action@v2
+        with:
+          context: build/
+          pull: true
+          push: true
+          tags: ghcr.io/olcf/greggd/dev-image:8.3_20210513

.github/workflows/build.yml

@@ -0,0 +1,19 @@
+---
+name: build
+on: [push]
+jobs:
+  build-binary:
+    runs-on: ubuntu-20.04
+    container: ghcr.io/olcf/greggd/dev-image:8.3_20210513
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Build
+        run: go build -v ./cmd/greggd/
+      - name: Test
+        run: go test -v ./...
+      - name: Save artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: greggd
+          path: greggd

.github/workflows/release.yml

@@ -0,0 +1,37 @@
+---
+name: release
+on: {push: {tags: ['*.*.*']}}
+jobs:
+  release:
+    runs-on: ubuntu-20.04
+    container: ghcr.io/olcf/greggd/dev-image:8.3_20210513
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        # No shallow clone
+        with:
+          fetch-depth: 0
+      - name: Export release vars
+        id: vars
+        shell: bash
+        run: |
+          echo "::set-output name=version::$(git describe --tags --abbrev=0)"
+          echo "::set-output name=release::$(git rev-parse --short HEAD)"
+      - name: Build
+        run: go build -v ./cmd/greggd/
+      - name: Test
+        run: go test -v ./...
+      - name: Build RPM
+        env:
+          VERSION: ${{ steps.vars.outputs.version }}
+          RELEASE: ${{ steps.vars.outputs.release }}
+        run: |
+          envsubst < build/nfpm-template.yaml > build/nfpm.yaml
+          nfpm -f build/nfpm.yaml pkg --packager rpm
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: greggd*.rpm
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -12,6 +12,7 @@ each program, parse it, and send output to a local socket on the host.
 Current eBPF and bcc tooling that "works" as a sensor:
 
   - opensnoop: file open() calls
+  - execsnoop: log exec() syscalls
   - biolatency: block I/O latency histograms
   - tcplife: tcp session lifetime and connection details
 

build/Dockerfile

@@ -0,0 +1,18 @@
+# Docker file for development image for greggd
+#
+# Builds image with all needed dependecies
+#
+
+FROM centos:8.3.2011
+
+LABEL name="greggd-devel" \
+      version="centos8.3-297"
+
+RUN dnf install --enablerepo=powertools -y \
+  @development git golang kernel-devel bcc-devel; \
+  yum clean all
+RUN \
+  curl -LO https://github.com/goreleaser/nfpm/releases/download/v2.5.1/nfpm_amd64.rpm; \
+  rpm -i nfpm_amd64.rpm; rm nfpm_amd64.rpm
+
+CMD ["/bin/bash"]

build/nfpm-template.yaml

@@ -0,0 +1,17 @@
+---
+name: "greggd"
+arch: "amd64"
+version: "${VERSION}"
+release: "${RELEASE}"
+homepage: "github.com/olcf/greggd"
+description: |
+  Global runtime for eBPF-enabled gathering (w/ gumption) daemon
+depends:
+  - bcc
+contents:
+  - src: ./greggd
+    dst: /usr/sbin/greggd
+  - src: ./csrc/**
+    dst: /usr/share/greggd/c/
+  - src: ./init/greggd.service
+    dst: /usr/lib/systemd/system/greggd.service

pkg/config/config_test.go

@@ -115,7 +115,7 @@ func TestParseConfigCompleteExample(t *testing.T) {
 					{Name: "id", Type: "u64"}, {Name: "fname", Type: "char[255]", IsTag: true}}}}},
 		},
 	}
-	f, err := os.Open("testdata/example_config.yaml")
+	f, err := os.Open("../../test/data/example_config.yaml")
 	if err != nil {
 		t.Errorf("Error thrown when opening config file test fixture: %v", err)
 		return

test/data/example_config.yaml

@@ -0,0 +1,30 @@
+---
+globals:
+  socketPath: /run/greggd.sock
+  verboseFormat: influx
+  verbose: true
+  maxRetryCount: 1
+  retryDelay: 100ms
+  retryExponentialBackoff: true
+
+# Hash of all programs to load
+programs:
+  - source: /usr/share/greggd/c/opensnoop.c
+    # Events to bind program to
+    events:
+      - type: kprobe
+        loadFunc: trace_entry
+        attachTo: do_sys_open
+      - type: kretprobe
+        loadFunc: trace_return
+        attachTo: do_sys_open
+    # What should we read from
+    outputs:
+      - type: BPF_PERF_OUTPUT
+        id: opensnoop
+        format:
+          - name: id
+            type: u64
+          - name: fname
+            type: char[255]
+            isTag: true