diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..b25f4f9
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,30 @@
+kind: pipeline
+type: kubernetes
+name: default
+
+steps:
+- name: test
+  image: golang:1.18
+  volumes:
+  - name: deps
+    path: /go
+  commands:
+  - go test -v
+  - go build
+
+- name: docker
+  image: harbor.ntppool.org/ntppool/drone-kaniko:main
+  pull: always
+  volumes:
+  - name: deps
+    path: /go
+  settings:
+    repo: library/locationcode
+    registry: harbor.ntppool.org
+    auto_tag: true
+    tags: SHA7,${DRONE_SOURCE_BRANCH}
+    cache: true
+    username:
+      from_secret: harbor_library_username
+    password:
+      from_secret: harbor_library_password    
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..cb80074
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,21 @@
+FROM golang:1.18-alpine3.15 AS build
+RUN apk --no-cache add git
+
+WORKDIR /go/src/
+ADD . /go/src/
+RUN go install -v ./...
+
+
+FROM alpine:3.15
+USER root
+RUN apk --no-cache add ca-certificates
+
+RUN addgroup lc && adduser -D -G lc lc
+WORKDIR /
+COPY --from=build /go/bin/locationcode  /bin/
+
+USER lc
+
+RUN mkdir /tmp/data
+
+CMD ["/bin/locationcode", "-data-dir=/tmp/data"]
diff --git a/airports.go b/airports.go
new file mode 100644
index 0000000..9772d98
--- /dev/null
+++ b/airports.go
@@ -0,0 +1,159 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"path"
+	"sort"
+	"strconv"
+	"strings"
+
+	"github.com/golang/geo/s2"
+	alphafoxtrot "github.com/grumpypixel/go-airport-finder"
+	"github.com/labstack/echo/v4"
+)
+
+type Airport struct {
+	Name     string
+	Code     string
+	Distance float64
+	data     *alphafoxtrot.Airport
+}
+
+func main() {
+
+	var dataDir = flag.String("data-dir", "./data", "Data cache directory")
+
+	flag.Parse()
+
+	validateData(*dataDir)
+
+	finder := alphafoxtrot.NewAirportFinder()
+
+	// LoadOptions come with preset filepaths
+	options := alphafoxtrot.PresetLoadOptions(*dataDir)
+
+	// filter := alphafoxtrot.AirportTypeLarge | alphafoxtrot.AirportTypeMedium
+	filter := alphafoxtrot.AirportTypeRunways
+
+	// Load the data into memory
+	if err := finder.Load(options, filter); len(err) > 0 {
+		log.Println("errors:", err)
+	}
+
+	e := echo.New()
+	e.GET("/", func(c echo.Context) error {
+		return c.String(http.StatusOK, "location code service")
+	})
+	e.GET("/v1/code", func(c echo.Context) error {
+
+		countryISOCode := c.QueryParam("cc")
+		countryISOCode = strings.ToUpper(countryISOCode)
+
+		radiusString := c.QueryParam("radius")
+
+		var radiusKM int
+		if len(radiusString) > 0 {
+			radiusKM, _ = strconv.Atoi(radiusString)
+		}
+
+		if radiusKM < 10 {
+			radiusKM = 100
+		}
+
+		latitude, longitude, err := getLatLng(c)
+		if err != nil {
+			return c.String(http.StatusBadRequest, fmt.Sprintf("invalid lat or lng: %s", err))
+		}
+
+		ipLocation := s2.LatLngFromDegrees(latitude, longitude)
+
+		maxResults := 100
+		radiusInMeters := float64(radiusKM) * 1000
+		airportsRaw := finder.FindNearestAirportsByCountry(countryISOCode, latitude, longitude, radiusInMeters, maxResults, filter)
+
+		airports := []*alphafoxtrot.Airport{}
+		for _, ap := range airportsRaw {
+			if len(ap.IATACode) == 0 {
+				continue
+			}
+			airports = append(airports, ap)
+		}
+
+		llCache := map[int]s2.LatLng{}
+		for i, ap := range airports {
+			ll := s2.LatLngFromDegrees(ap.LatitudeDeg, ap.LongitudeDeg)
+			llCache[i] = ll
+		}
+
+		r := []*Airport{}
+
+		for i, airport := range airports {
+			// fmt.Printf("%d %s: %+v\n", i, airport.Name, airport)
+
+			code := strings.ToLower(airport.Country.ISOCode + airport.IATACode)
+
+			distance := float64(ipLocation.Distance(llCache[i])) * 6371.01
+
+			a := &Airport{
+				Name:     airport.Name,
+				Code:     code,
+				Distance: distance,
+				data:     airport,
+			}
+			r = append(r, a)
+		}
+
+		sort.Slice(r, func(i, j int) bool {
+			if r[i].data.Type == r[j].data.Type {
+				return r[i].Distance < r[j].Distance
+			}
+			return airports[i].Type < airports[j].Type
+		})
+
+		if len(r) > 10 {
+			r = r[0:10]
+		}
+
+		fmt.Printf("got %d airports, filtered to %d, returning %d\n", len(airportsRaw), len(airports), len(r))
+
+		return c.JSON(http.StatusOK, r)
+	})
+
+	e.Logger.Fatal(e.Start(":8000"))
+
+}
+
+func validateData(dataDir string) {
+	downloadFiles := false
+	for _, filename := range alphafoxtrot.OurAirportsFiles {
+		filepath := path.Join(dataDir, filename)
+		if _, err := os.Stat(filepath); os.IsNotExist(err) {
+			downloadFiles = true
+			break
+		}
+	}
+	if downloadFiles {
+		fmt.Println("Downloading CSV files from OurAirports.com...")
+		alphafoxtrot.DownloadDatabase(dataDir)
+	}
+}
+
+func getLatLng(c echo.Context) (float64, float64, error) {
+	latitudeStr := c.QueryParam("lat")  //  37.3793
+	longitudeStr := c.QueryParam("lng") // -122.12
+
+	latitude, err := strconv.ParseFloat(latitudeStr, 64)
+	if err != nil {
+		return 0, 0, err
+	}
+	longitude, err := strconv.ParseFloat(longitudeStr, 64)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	return latitude, longitude, nil
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e6e3fa4
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,22 @@
+module go.askask.com/locationcode
+
+go 1.18
+
+require (
+	github.com/golang/geo v0.0.0-20210211234256-740aa86cb551
+	github.com/grumpypixel/go-airport-finder v0.0.0-20210902211810-793a4fb1490b
+	github.com/labstack/echo/v4 v4.7.2
+)
+
+require (
+	github.com/grumpypixel/go-webget v0.0.1 // indirect
+	github.com/labstack/gommon v0.3.1 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.1 // indirect
+	golang.org/x/crypto v0.0.0-20220331220935-ae2d96664a29 // indirect
+	golang.org/x/net v0.0.0-20220407224826-aac1ed45d8e3 // indirect
+	golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12 // indirect
+	golang.org/x/text v0.3.7 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..a16c7e1
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,44 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang/geo v0.0.0-20210211234256-740aa86cb551 h1:gtexQ/VGyN+VVFRXSFiguSNcXmS6rkKT+X7FdIrTtfo=
+github.com/golang/geo v0.0.0-20210211234256-740aa86cb551/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
+github.com/grumpypixel/go-airport-finder v0.0.0-20210902211810-793a4fb1490b h1:CAT7j8NnDTijm+Mqc49PowzRwffiQwoNTdacBtAaPac=
+github.com/grumpypixel/go-airport-finder v0.0.0-20210902211810-793a4fb1490b/go.mod h1:VSzLdQ8TugVDF/ZqngnVa/4budj2JLbC3spdz4eKEd4=
+github.com/grumpypixel/go-webget v0.0.0-20210513194017-df576311f21d h1:ZD475Db8FZRfptdzpvWiAQPRkElVrITDmg7yiTN+vk0=
+github.com/grumpypixel/go-webget v0.0.0-20210513194017-df576311f21d/go.mod h1:TZ3kzdKP644McT9EqfvX6vRcnoKxAGNJVbUGfDCgbpA=
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