Add the Cloudposse package repository.

.dockerignore

 *
 !sources.d/*
+!preferences.d/*
 !bfg
 !bash_completion.d/*

Dockerfile

@@ -8,6 +8,8 @@ RUN curl https://packages.cloud.google.com/apt/doc/apt-key.gpg > google-cloud.gp
 RUN curl https://cli-assets.heroku.com/apt/release.key | gpg --dearmor > heroku.gpg
 # hadolint ignore=DL4006
 RUN curl https://apt.releases.hashicorp.com/gpg | gpg --dearmor > hashicorp.gpg
+# hadolint ignore=DL4006
+RUN curl https://dl.cloudsmith.io/public/cloudposse/packages/gpg.7333C6FDEFA717CC.key | gpg --dearmor > cloudposse.gpg
 
 FROM registry.hub.docker.com/library/buildpack-deps:testing
 SHELL ["/bin/bash", "-o", "pipefail", "-xc"]
@@ -22,7 +24,9 @@ COPY --from=repo-key /gnupghome/mongodb.gpg /usr/share/keyrings/mongodb.gpg
 COPY --from=repo-key /gnupghome/google-cloud.gpg /usr/share/keyrings/google-cloud.gpg
 COPY --from=repo-key /gnupghome/heroku.gpg /usr/share/keyrings/heroku.gpg
 COPY --from=repo-key /gnupghome/hashicorp.gpg /usr/share/keyrings/hashicorp.gpg
+COPY --from=repo-key /gnupghome/cloudposse.gpg /usr/share/keyrings/cloudposse.gpg
 COPY --chown=root:root sources.d/* /etc/apt/sources.list.d/
+COPY --chown=root:root preferences.d/* /etc/apt/preferences.d/
 # hadolint ignore=DL3008,DL3013,DL3027
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install --yes --no-install-recommends \

preferences.d/cloudposse

+Package: *
+Pin: release o=https://cloudsmith.io
+Pin-Priority: 400

sources.d/cloudposse.sources

+Types: deb deb-src
+URIs: https://dl.cloudsmith.io/public/cloudposse/packages/deb/debian
+Suites: any-version
+Components: main
+Signed-By: /usr/share/keyrings/cloudposse.gpg