more docs and base-image from GHCR

README.md

@@ -13,13 +13,15 @@ The synop2bufr Python module contains both a command line interface and API to c
 
 Dependencies are listed in [requirements.txt](https://github.com/wmo-im/synop2bufr/blob/main/requirements.txt). Dependencies are automatically installed during synop2bufr installation.
 
+## Running
+
+To run synop2bufr from a docker container:
+
 ```console
 docker build -t synop2bufr:local .
 docker run -it -v ${pwd}:/local synop2bufr
 ```
 
-## Running
-
 Example data can be found in `data` directory, with the corresponding reference BUFR4 in `data/bufr`.
 
 To transform SYNOP data file into BUFR:
@@ -29,6 +31,8 @@ mkdir output-data
 synop2bufr data transform --metadata data/station_list.csv --year 2023 --month 03 --output-dir output-data data/A_SMRO01YRBK211200_C_EDZW_20220321120500_12524785.txt
 ```
 
+To run synop2bufr inside a Lambda function on Amazon Web Services, please refer to [aws-lambda/README.md](aws-lambda/README.md) and use this [Dockerfile](aws-lambda/Dockerfile) to build the container image for the Lambda function.
+
 ## Usage Guide
 
 Here we detail how synop2bufr can be used.

aws-lambda/Dockerfile

@@ -1,7 +1,7 @@
 # Define custom function directory
 ARG FUNCTION_DIR="/function"
 
-FROM wmoim/dim_eccodes_baseimage:2.31.0
+FROM ghcr.io/wmo-im/dim_eccodes_baseimage:2.31.0
 
 # Include global arg in this stage of the build
 ARG FUNCTION_DIR

aws-lambda/README.md

@@ -2,16 +2,15 @@
 
 ## Overview
 
-AWS Lambda is a service from Amazon that enables publishing
-code which is executed as on demand functions. 
+AWS Lambda is a service from Amazon that enables publishing code which is executed as on demand functions. 
 
 This directory contains the Dockerfile and example lambda function code that will run the synop2bufr-transformation on files received in S3.
 
 ## lambda container
 
-To run synop2bufr on Lambda requires a custom container image.  The Dockerfile in this directory.
+The Dockerfile in this directory will build the container image that can be used to run synop2bufr on Lambda.
 
-# to build docker container
+# build and deploy
 ```bash
 docker build -t synop2bufr-lambda .
 ```