Skip to content

STAC Catalog

Goal

Create a container and run the stac step in the container image tagged localhost/stac:latest.

Lab

This step has a dedicated lab available at /workspace/mastering-app-package/practice-labs/Containers/stac.ipynb

Container

Each step has its own recipe to build the container image.

The stac step container image recipe is:

stac/Dockerfile
1
2
3
4
5
6
7
8
FROM docker.io/library/python:3.10-slim@sha256:80619a5316afae7045a3c13371b0ee670f39bac46ea1ed35081d2bf91d6c3dbd

RUN pip install --no-cache-dir pystac rio_stac loguru click && \
    python -c "import rio_stac"

ADD app.py /app/app.py

ENTRYPOINT []

Build the container image with:

terminal
1
2
3
4
5
export WORKSPACE=/workspace/mastering-app-package

podman build --format docker -t localhost/crop:latest ${WORKSPACE}/water-bodies/command-line-tools/crop
podman build --format docker -t localhost/norm-diff:latest ${WORKSPACE}/water-bodies/command-line-tools/norm_diff
podman build --format docker -t localhost/otsu:latest ${WORKSPACE}/water-bodies/command-line-tools/otsu

Run the container

The command to run the stac step in the container is:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
podman \
    run \
    -i \
    --userns=keep-id \
    --mount=type=bind,source=/workspace/mastering-app-package/runs,target=/runs \
    --mount=type=bind,source=/workspace/mastering-app-package/runs/otsu.tif,target=/inputs/otsu.tif,readonly \
    --workdir=/runs \
    --read-only=true \
    --user=1001:100 \
    --rm \
    --env=HOME=/runs \
    --env=PYTHONPATH=/app \
    localhost/stac:latest \
    python \
    -m \
    app \
    --input-item \
    https://earth-search.aws.element84.com/v0/collections/sentinel-s2-l2a-cogs/items/S2B_10TFK_20210713_0_L2A \
    --water-body \
    /inputs/otsu.tif

Step

Run the command to run the stac step with:

sh -x ${WORKSPACE}/scripts/podman-stac.sh

Expected outcome

The folder /workspace/mastering-app-package/runs contains: 

(base) jovyan@coder-mrossi:~/runs$ tree .
.
├── S2B_10TFK_20210713_0_L2A
│   ├── S2B_10TFK_20210713_0_L2A.json
│   └── otsu.tif
├── catalog.json
├── crop_green.tif
├── crop_nir.tif
├── norm_diff.tif
└── otsu.tif

1 directory, 7 files