From 16243481a7038f69f6aa7ba884d2dd4c924b7fea Mon Sep 17 00:00:00 2001 From: "Brett C. Dudo" Date: Mon, 27 Nov 2023 22:02:57 -0800 Subject: [PATCH] first commit --- .dockerignore | 0 .env.sample | 0 .github/workflows/docker_image.yml | 10 ++ .gitignore | 33 +++++ Dockerfile | 51 ++++++++ README.md | 17 +++ compose.yml | 17 +++ go.mod | 27 ++++ go.sum | 197 +++++++++++++++++++++++++++++ main.go | 93 ++++++++++++++ tools.go | 3 + 11 files changed, 448 insertions(+) create mode 100644 .dockerignore create mode 100644 .env.sample create mode 100644 .github/workflows/docker_image.yml create mode 100644 .gitignore create mode 100644 Dockerfile create mode 100644 README.md create mode 100644 compose.yml create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go create mode 100644 tools.go diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 0000000..e69de29 diff --git a/.env.sample b/.env.sample new file mode 100644 index 0000000..e69de29 diff --git a/.github/workflows/docker_image.yml b/.github/workflows/docker_image.yml new file mode 100644 index 0000000..2c7ca78 --- /dev/null +++ b/.github/workflows/docker_image.yml @@ -0,0 +1,10 @@ +on: + push: + branches: + - main + +name: Publish Image + +jobs: + image: + uses: orbservability/.github/.github/workflows/publish_image.yml@main diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..bac9475 --- /dev/null +++ b/.gitignore @@ -0,0 +1,33 @@ +.DS_Store + +# Ignore node files +node_modules +dist +.cache + +# Ignore editor workspace files +.vscode +.sublime-* +.atom +.editorconfig +.idea +.nyc_output +coverage +*.lcov +*.swp +*.swo + +# Ignore all logfiles and tempfiles. +/log/* +/tmp/* +!/log/.keep +!/tmp/.keep + +# Ignore version control +.tool-versions +.*-version + +# Ignore env +/.env +.env.local +compose.override.yml diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..2b8fafc --- /dev/null +++ b/Dockerfile @@ -0,0 +1,51 @@ +# First stage: build the executable. +# Start from the official Go image to create a build artifact. +# This is based on Debian and includes standard C libraries. +FROM golang:1.21 AS builder + +# Set the working directory outside $GOPATH to enable the support for modules. +WORKDIR /usr/src/app + +# Copy the Go Modules manifests and download the dependencies. +# This is done before copying the code to leverage Docker cache layers. +COPY go.* ./ +RUN go mod download + +# Copy the source code from the current directory to the working directory inside the container. +COPY . . + +# Build the binary with full module support and without Cgo. +# Compile the binary statically including all dependencies. +RUN CGO_ENABLED=0 GOOS=linux go build -mod=readonly -a -installsuffix cgo -o /go/bin/main . + +# Second stage: build the runtime container. +# Start from a scratch image, which is an empty container. +FROM scratch AS runtime + +WORKDIR /usr/src/app + +# Create a non-root user and group with the user ID and group ID set to 10001 +COPY --from=builder /etc/passwd /etc/group /etc/ +RUN addgroup --system --gid 10001 nonroot && \ + adduser --system --uid 10001 --ingroup nonroot nonroot + +# Import the Certificate-Authority certificates for enabling HTTPS. +# This is important for applications that make external HTTPS calls. +COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ + +# Import the compiled binary from the first stage. +COPY --from=builder /go/bin/main . + +# Use the nonroot user to run the application +USER nonroot:nonroot + +# Declare the environment variable for the application. +# For example, setting the port where the application will run. +# ENV PORT=8080 + +# Expose the application on port 8080. +# EXPOSE $PORT + +# Define the entry point for the docker image. +# This is the command that will be run when the container starts. +ENTRYPOINT ["/usr/src/app/main"] diff --git a/README.md b/README.md new file mode 100644 index 0000000..5a4490e --- /dev/null +++ b/README.md @@ -0,0 +1,17 @@ +# Observer + +Streams data sources to stdout. + +## Usage + +```sh +docker compose build +docker compose run --rm go mod tidy +``` + +## Reading + +Learn about the various tech powering this application: + +- [Pixie](https://docs.px.dev/about-pixie/what-is-pixie/) +- [eBPF](https://ebpf.io/) diff --git a/compose.yml b/compose.yml new file mode 100644 index 0000000..ecaed64 --- /dev/null +++ b/compose.yml @@ -0,0 +1,17 @@ +services: + go: &go + env_file: .env + tty: true + stdin_open: true + build: + context: . + target: builder + entrypoint: go + command: help + volumes: + - .:/usr/src/app:delegated + - gomod:/go/pkg/mod + - ${LOCAL_DEP_PATH:-..}:/local + +volumes: + gomod: {} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..e84cd4a --- /dev/null +++ b/go.mod @@ -0,0 +1,27 @@ +module orbservability/observer + +go 1.21 + +require px.dev/pxapi v0.5.0 + +require ( + github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.0-20210816181553-5444fa50b93d // indirect + github.com/goccy/go-json v0.10.0 // indirect + github.com/gofrs/uuid v4.0.0+incompatible // indirect + github.com/gogo/protobuf v1.3.2 // indirect + github.com/golang/protobuf v1.5.2 // indirect + github.com/lestrrat-go/backoff/v2 v2.0.8 // indirect + github.com/lestrrat-go/blackmagic v1.0.0 // indirect + github.com/lestrrat-go/httpcc v1.0.0 // indirect + github.com/lestrrat-go/iter v1.0.1 // indirect + github.com/lestrrat-go/jwx v1.2.17 // indirect + github.com/lestrrat-go/option v1.0.0 // indirect + github.com/pkg/errors v0.9.1 // indirect + golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be // indirect + golang.org/x/net v0.8.0 // indirect + golang.org/x/sys v0.6.0 // indirect + golang.org/x/text v0.8.0 // indirect + google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect + google.golang.org/grpc v1.43.0 // indirect + google.golang.org/protobuf v1.28.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..267b77f --- /dev/null +++ b/go.sum @@ -0,0 +1,197 @@ +cloud.google.com/go v0.26.0/go.mod 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-0,0 +1,93 @@ +package main + +import ( + "context" + "fmt" + "io" + + "px.dev/pxapi" + "px.dev/pxapi/errdefs" + "px.dev/pxapi/types" +) + +// Define PxL script with one table output. +var ( + pxl = ` +import px + +# Look at the http_events. +df = px.DataFrame(table='http_events') + +# Grab the command line from the metadata. +df.cmdline = px.upid_to_cmdline(df.upid) + +# Limit to the first 10. +df = df.head(10) + +px.display(df)` +) + +func main() { + // Create a Pixie client with local standalonePEM listening address + ctx := context.Background() + client, err := pxapi.NewClient( + ctx, + pxapi.WithDirectAddr("127.0.0.1:12345"), + pxapi.WithDirectCredsInsecure(), + ) + if err != nil { + panic(err) + } + // Create a connection to the host. + hostID := "localhost" + vz, err := client.NewVizierClient(ctx, hostID) + if err != nil { + panic(err) + } + // Create TableMuxer to accept results table. + tm := &tableMux{} + // Execute the PxL script. + resultSet, err := vz.ExecuteScript(ctx, pxl, tm) + if err != nil && err != io.EOF { + panic(err) + } + // Receive the PxL script results. + defer resultSet.Close() + if err := resultSet.Stream(); err != nil { + if errdefs.IsCompilationError(err) { + fmt.Printf("Got compiler error: \n %s\n", err.Error()) + } else { + fmt.Printf("Got error : %+v, while streaming\n", err) + } + } + // Get the execution stats for the script execution. + stats := resultSet.Stats() + fmt.Printf("Execution Time: %v\n", stats.ExecutionTime) + fmt.Printf("Bytes received: %v\n", stats.TotalBytes) +} + +// Satisfies the TableRecordHandler interface. +type tablePrinter struct{} + +func (t *tablePrinter) HandleInit(ctx context.Context, metadata types.TableMetadata) error { + return nil +} +func (t *tablePrinter) HandleRecord(ctx context.Context, r *types.Record) error { + for _, d := range r.Data { + fmt.Printf("%s ", d.String()) + } + fmt.Printf("\n") + return nil +} + +func (t *tablePrinter) HandleDone(ctx context.Context) error { + return nil +} + +// Satisfies the TableMuxer interface. +type tableMux struct { +} + +func (s *tableMux) AcceptTable(ctx context.Context, metadata types.TableMetadata) (pxapi.TableRecordHandler, error) { + return &tablePrinter{}, nil +} diff --git a/tools.go b/tools.go new file mode 100644 index 0000000..ae824ea --- /dev/null +++ b/tools.go @@ -0,0 +1,3 @@ +//go:build tools + +package tools