another Dockerfile test

.devcontainer/.devcontainer.json

@@ -1,3 +1,3 @@
 {
-  "build": { "dockerfile": "Dockerfile" }
+    "build": { "dockerfile": "Dockerfile"}
 }

.devcontainer/Dockerfile

@@ -1,8 +1,14 @@
-FROM ghcr.io/osgeo/gdal:ubuntu-full-latest
+FROM ubuntu:22.04
+# minimal docker file to get sp and sf running on ubunty 16.04 image,
+# using gdal/geos/proj from ppa:ubuntugis/ubuntugis-unstable
+
+# MAINTAINER "edzerpebesma" [email protected]
 
 RUN apt-get update && apt-get install -y software-properties-common dirmngr
 RUN add-apt-repository ppa:ubuntugis/ubuntugis-unstable
 
+RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
+
 # add the R 4.0 repo from CRAN -- adjust 'focal' to 'groovy' or 'bionic' as needed
 RUN add-apt-repository "deb https://cloud.r-project.org/bin/linux/ubuntu $(lsb_release -cs)-cran40/"
 
@@ -32,22 +38,3 @@ RUN export DEBIAN_FRONTEND=noninteractive; apt-get -y update \
 	vim \
 	tk-dev \
 	wget
-
-RUN apt-get update && apt-get install -y --fix-missing \
-	libjq-dev \
-	libprotobuf-dev \
-	libxml2-dev \
-	libprotobuf-dev \
-	protobuf-compiler \
-	unixodbc-dev \
-	libssh2-1-dev \
-	libgit2-dev \
-	libnetcdf-dev \
-	locales \
-	libssl-dev \
-	libtiff-dev \
-	cmake \
-	libtiff5-dev \
-	libopenjp2-7-dev
-
-RUN locale-gen en_US.UTF-8