From a66083ea6a2487a042d3dcae5d3e3bfcda96bf17 Mon Sep 17 00:00:00 2001
From: Aaron Bieber
Date: Wed, 16 Nov 2022 19:53:59 -0700
Subject: [PATCH] initial
---
.envrc | 1 +
.gitignore | 3 +
LICENSE | 15 +++
flake.lock | 26 +++++
flake.nix | 40 +++++++
generate_images.sh | 12 ++
go.mod | 67 +++++++++++
go.sum | 284 +++++++++++++++++++++++++++++++++++++++++++++
main.go | 146 +++++++++++++++++++++++
style.css | 26 +++++
10 files changed, 620 insertions(+)
create mode 100644 .envrc
create mode 100644 .gitignore
create mode 100644 LICENSE
create mode 100644 flake.lock
create mode 100644 flake.nix
create mode 100755 generate_images.sh
create mode 100644 go.mod
create mode 100644 go.sum
create mode 100644 main.go
create mode 100644 style.css
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..64e2d48
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.direnv
+*.bak
+result
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..a122d8a
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2022 Aaron Bieber
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..17d425b
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,26 @@
+{
+ "nodes": {
+ "nixpkgs": {
+ "locked": {
+ "lastModified": 1668417584,
+ "narHash": "sha256-yeuEyxKPwsm5fIHN49L/syn9g5coxnPp3GsVquhrv5A=",
+ "owner": "NixOS",
+ "repo": "nixpkgs",
+ "rev": "013fcdd106823416918004bb684c3c186d3c460f",
+ "type": "github"
+ },
+ "original": {
+ "id": "nixpkgs",
+ "ref": "nixos-unstable",
+ "type": "indirect"
+ }
+ },
+ "root": {
+ "inputs": {
+ "nixpkgs": "nixpkgs"
+ }
+ }
+ },
+ "root": "root",
+ "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..c5c6e9a
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,40 @@
+{
+ description = "tsvnstat: a tailscale aware vmcstat server";
+
+ inputs.nixpkgs.url = "nixpkgs/nixos-unstable";
+
+ outputs = { self, nixpkgs }:
+ let
+ supportedSystems =
+ [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+ forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+ nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+ in {
+ packages = forAllSystems (system:
+ let pkgs = nixpkgsFor.${system};
+ in {
+ tsvnstat = pkgs.buildGoModule {
+ pname = "tsvnstat";
+ version = "v0.0.0";
+ src = ./.;
+
+ vendorSha256 = "sha256-RNhu1gQ62Hg8Fhiw9uIS+b4YaAHtZMaqbelMKv+oZjM=";
+ proxyVendor = true;
+ };
+ });
+
+ defaultPackage = forAllSystems (system: self.packages.${system}.tsvnstat);
+ devShells = forAllSystems (system:
+ let pkgs = nixpkgsFor.${system};
+ in {
+ default = pkgs.mkShell {
+ shellHook = ''
+ PS1='\u@\h:\@; '
+ echo "Go `${pkgs.go}/bin/go version`"
+ '';
+ nativeBuildInputs = with pkgs; [ git go gopls go-tools ];
+ };
+ });
+ };
+}
+
diff --git a/generate_images.sh b/generate_images.sh
new file mode 100755
index 0000000..cbd550b
--- /dev/null
+++ b/generate_images.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env sh
+
+for i in $@; do
+ vnstati --style 1 -L -s -o ${i}-s.png $i
+ vnstati --style 1 -L --fivegraph 576 218 -o ${i}-5g.png $i
+ vnstati --style 1 -L -hg -o ${i}-hg.png $i
+ vnstati --style 1 -L -h 24 -o ${i}-h.png $i
+ vnstati --style 1 -L -d 30 -o ${i}-d.png $i
+ vnstati --style 1 -L -t 10 -o ${i}-t.png $i
+ vnstati --style 1 -L -m 12 -o ${i}-m.png $i
+ vnstati --style 1 -L -y 5 -o ${i}-y.png $i
+done
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..484f681
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,67 @@
+module suah.dev/tsvnstat
+
+go 1.19
+
+require tailscale.com v1.32.2
+
+require (
+ filippo.io/edwards25519 v1.0.0-rc.1 // indirect
+ github.com/akutz/memconn v0.1.0 // indirect
+ github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 // indirect
+ github.com/aws/aws-sdk-go-v2 v1.11.2 // indirect
+ github.com/aws/aws-sdk-go-v2/config v1.11.0 // indirect
+ github.com/aws/aws-sdk-go-v2/credentials v1.6.4 // indirect
+ github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.8.2 // indirect
+ github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.2 // indirect
+ github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.0.2 // indirect
+ github.com/aws/aws-sdk-go-v2/internal/ini v1.3.2 // indirect
+ github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.5.2 // indirect
+ github.com/aws/aws-sdk-go-v2/service/ssm v1.17.1 // indirect
+ github.com/aws/aws-sdk-go-v2/service/sso v1.6.2 // indirect
+ github.com/aws/aws-sdk-go-v2/service/sts v1.11.1 // indirect
+ github.com/aws/smithy-go v1.9.0 // indirect
+ github.com/coreos/go-iptables v0.6.0 // indirect
+ github.com/fxamacker/cbor/v2 v2.4.0 // indirect
+ github.com/go-ole/go-ole v1.2.6 // indirect
+ github.com/godbus/dbus/v5 v5.0.6 // indirect
+ github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+ github.com/google/btree v1.0.1 // indirect
+ github.com/google/go-cmp v0.5.8 // indirect
+ github.com/hdevalence/ed25519consensus v0.0.0-20220222234857-c00d1f31bab3 // indirect
+ github.com/insomniacslk/dhcp v0.0.0-20211209223715-7d93572ebe8e // indirect
+ github.com/jmespath/go-jmespath v0.4.0 // indirect
+ github.com/josharian/native v1.0.0 // indirect
+ github.com/jsimonetti/rtnetlink v1.1.2-0.20220408201609-d380b505068b // indirect
+ github.com/klauspost/compress v1.15.4 // indirect
+ github.com/kortschak/wol v0.0.0-20200729010619-da482cc4850a // indirect
+ github.com/mdlayher/genetlink v1.2.0 // indirect
+ github.com/mdlayher/netlink v1.6.0 // indirect
+ github.com/mdlayher/sdnotify v1.0.0 // indirect
+ github.com/mdlayher/socket v0.2.3 // indirect
+ github.com/mitchellh/go-ps v1.0.0 // indirect
+ github.com/pkg/errors v0.9.1 // indirect
+ github.com/tailscale/certstore v0.1.1-0.20220316223106-78d6e1c49d8d // indirect
+ github.com/tailscale/golang-x-crypto v0.0.0-20221009170451-62f465106986 // indirect
+ github.com/tailscale/goupnp v1.0.1-0.20210804011211-c64d0f06ea05 // indirect
+ github.com/tailscale/netlink v1.1.1-0.20211101221916-cabfb018fe85 // indirect
+ github.com/tcnksm/go-httpstat v0.2.0 // indirect
+ github.com/u-root/uio v0.0.0-20220204230159-dac05f7d2cb4 // indirect
+ github.com/vishvananda/netlink v1.1.1-0.20211118161826-650dca95af54 // indirect
+ github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
+ github.com/x448/float16 v0.8.4 // indirect
+ go4.org/mem v0.0.0-20210711025021-927187094b94 // indirect
+ go4.org/netipx v0.0.0-20220725152314-7e7bdc8411bf // indirect
+ golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f // indirect
+ golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
+ golang.org/x/net v0.0.0-20221002022538-bcab6841153b // indirect
+ golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect
+ golang.org/x/sys v0.0.0-20220728004956-3c1f35247d10 // indirect
+ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
+ golang.org/x/text v0.3.8-0.20211105212822-18b340fc7af2 // indirect
+ golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11 // indirect
+ golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
+ golang.zx2c4.com/wireguard v0.0.0-20220904105730-b51010ba13f0 // indirect
+ golang.zx2c4.com/wireguard/windows v0.5.3 // indirect
+ gvisor.dev/gvisor v0.0.0-20220817001344-846276b3dbc5 // indirect
+ nhooyr.io/websocket v1.8.7 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..dd20eaf
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,284 @@
+filippo.io/edwards25519 v1.0.0-rc.1 h1:m0VOOB23frXZvAOK44usCgLWvtsxIoMCTBGJZlpmGfU=
+filippo.io/edwards25519 v1.0.0-rc.1/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
+filippo.io/mkcert v1.4.3 h1:axpnmtrZMM8u5Hf4N3UXxboGemMOV+Tn+e+pkHM6E3o=
+github.com/BurntSushi/toml v1.1.0 h1:ksErzDEI1khOiGPgpwuI7x2ebx/uXQNw7xJpn9Eq1+I=
+github.com/akutz/memconn v0.1.0 h1:NawI0TORU4hcOMsMr11g7vwlCdkYeLKXBcxWu2W/P8A=
+github.com/akutz/memconn v0.1.0/go.mod h1:Jo8rI7m0NieZyLI5e2CDlRdRqRRB4S7Xp77ukDjH+Fw=
+github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 h1:Kk6a4nehpJ3UuJRqlA3JxYxBZEqCeOmATOvrbT4p9RA=
+github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
+github.com/aws/aws-sdk-go-v2 v1.11.2 h1:SDiCYqxdIYi6HgQfAWRhgdZrdnOuGyLDJVRSWLeHWvs=
+github.com/aws/aws-sdk-go-v2 v1.11.2/go.mod h1:SQfA+m2ltnu1cA0soUkj4dRSsmITiVQUJvBIZjzfPyQ=
+github.com/aws/aws-sdk-go-v2/config v1.11.0 h1:Czlld5zBB61A3/aoegA9/buZulwL9mHHfizh/Oq+Kqs=
+github.com/aws/aws-sdk-go-v2/config v1.11.0/go.mod h1:VrQDJGFBM5yZe+IOeenNZ/DWoErdny+k2MHEIpwDsEY=
+github.com/aws/aws-sdk-go-v2/credentials v1.6.4 h1:2hvbUoHufns0lDIsaK8FVCMukT1WngtZPavN+W2FkSw=
+github.com/aws/aws-sdk-go-v2/credentials v1.6.4/go.mod h1:tTrhvBPHyPde4pdIPSba4Nv7RYr4wP9jxXEDa1bKn/8=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.8.2 h1:KiN5TPOLrEjbGCvdTQR4t0U4T87vVwALZ5Bg3jpMqPY=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.8.2/go.mod h1:dF2F6tXEOgmW5X1ZFO/EPtWrcm7XkW07KNcJUGNtt4s=
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+github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.2/go.mod h1:SgKKNBIoDC/E1ZCDhhMW3yalWjwuLjMcpLzsM/QQnWo=
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diff --git a/main.go b/main.go
new file mode 100644
index 0000000..8282176
--- /dev/null
+++ b/main.go
@@ -0,0 +1,146 @@
+package main
+
+import (
+ _ "embed"
+ "flag"
+ "fmt"
+ "log"
+ "net"
+ "net/http"
+ "os"
+ "os/exec"
+ "sort"
+ "strings"
+ "time"
+
+ "tailscale.com/tsnet"
+)
+
+//go:embed generate_images.sh
+var genScript []byte
+
+//go:embed style.css
+var style string
+
+func main() {
+ tmpDir, err := os.MkdirTemp("", "tsvnstat")
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ defer os.RemoveAll(tmpDir)
+
+ tmpFile, err := os.CreateTemp("", "generate_images.sh")
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ defer os.Remove(tmpFile.Name())
+
+ if _, err := tmpFile.Write(genScript); err != nil {
+ log.Fatal(err)
+ }
+ if err := tmpFile.Close(); err != nil {
+ log.Fatal(err)
+ }
+
+ err = os.Chmod(tmpFile.Name(), 0700)
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ name := flag.String("name", "", "name of service")
+ dir := flag.String("dir", tmpDir, "directory containing vnstat images")
+ flag.Parse()
+
+ s := &tsnet.Server{
+ Hostname: *name,
+ }
+
+ ln, err := s.Listen("tcp", ":80")
+ if err != nil {
+ log.Fatal(err)
+ }
+ defer ln.Close()
+
+ host, err := os.Hostname()
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ go func() {
+ for {
+ log.Printf("running %q in %q", tmpFile.Name(), tmpDir)
+
+ ifaces, err := net.Interfaces()
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ var ifNames []string
+ for _, intf := range ifaces {
+ ifNames = append(ifNames, intf.Name)
+ }
+
+ genCmd := exec.Command(tmpFile.Name(), ifNames...)
+ genCmd.Dir = *dir
+ _, err = genCmd.Output()
+ if err != nil {
+ log.Fatal(err)
+ }
+ time.Sleep(5 * time.Minute)
+ }
+ }()
+
+ mux := http.NewServeMux()
+ fileServer := http.FileServer(http.Dir(*dir))
+
+ mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+ fileServer.ServeHTTP(w, r)
+ })
+ mux.HandleFunc("/index.html", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+ images, err := os.ReadDir(*dir)
+ if err != nil {
+ http.Error(w, err.Error(), 500)
+ return
+ }
+
+ fmt.Fprintf(w, `
+
+ %s
+
+
+
+ vnstat for %s
`, host, style, host)
+
+ sort.Slice(images, func(i, j int) bool {
+ return images[i].Name() < images[j].Name()
+ })
+
+ prefix := ""
+ oldPrefix := ""
+ for _, img := range images {
+ in := img.Name()
+ imgPrefix := strings.Split(in, "-")[0]
+ headImg := fmt.Sprintf("%s-s.png", imgPrefix)
+
+ if prefix != imgPrefix {
+ if oldPrefix != prefix {
+ fmt.Fprintf(w, "
")
+ }
+ fmt.Fprintf(w, "
", headImg)
+ prefix = imgPrefix
+ }
+
+ if in != headImg {
+ fmt.Fprintf(w, "
", in)
+ }
+ }
+ }))
+
+ hs := &http.Server{
+ Handler: mux,
+ }
+
+ log.Panic(hs.Serve(ln))
+}
diff --git a/style.css b/style.css
new file mode 100644
index 0000000..6b06957
--- /dev/null
+++ b/style.css
@@ -0,0 +1,26 @@
+details {
+ padding: 10px;
+ margin: 30px;
+ border: 1px solid black;
+ border-radius: 10px;
+}
+
+details > summary {
+ padding: 2px 6px;
+ cursor: pointer;
+ list-style: none;
+}
+
+details[open] > summary {
+ border-bottom: 1px solid black;
+ border-radius: 0 0 10px 10px;
+}
+
+details > p {
+ padding: 2px 6px;
+ position: reltive;
+}
+
+details > p > img {
+ padding: 6px;
+}