Add package-based soroban-rpc Dockerfile (#710)

* Add package-based soroban-rpc Dockerfile

### What

This PR adds new soroban-rpc Dockerfile that uses official
SDF deb packages as source of stellar-soroban-rpc and stellar-core

### Why

This Dockerfile will allow us to reuse release packages.
It will also allow us to run more lighweight soroban-rpc deployments
than those using the stellar/quickstart image

* Address PR feedback

* specify amd64 platform explicitly as we currently only support amd64 core
* make STELLAR_CORE_VERSION required to avoid hardcoding versions in the files.
  We will provide version from a dropdown in the build job
* if soroban-rpc version is not provided read it from GitHub and install latest
  package matching the version

---------

Co-authored-by: Tsachi Herman <[email protected]>

cmd/soroban-rpc/docker/Dockerfile.release

@@ -0,0 +1,20 @@
+FROM ubuntu:20.04
+ARG STELLAR_CORE_VERSION
+ENV STELLAR_CORE_VERSION=${STELLAR_CORE_VERSION:-*}
+ARG SOROBAN_RPC_VERSION
+ENV SOROBAN_RPC_VERSION=${SOROBAN_RPC_VERSION:-*}
+
+ENV STELLAR_CORE_BINARY_PATH /usr/bin/stellar-core
+ENV DEBIAN_FRONTEND=noninteractive
+
+# ca-certificates are required to make tls connections
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates curl wget gnupg apt-utils gpg && \
+    curl -sSL https://apt.stellar.org/SDF.asc | gpg --dearmor >/etc/apt/trusted.gpg.d/SDF.gpg && \
+    echo "deb https://apt.stellar.org focal stable" >/etc/apt/sources.list.d/SDF.list && \
+    echo "deb https://apt.stellar.org focal testing" >/etc/apt/sources.list.d/SDF-testing.list && \
+    echo "deb https://apt.stellar.org focal unstable" >/etc/apt/sources.list.d/SDF-unstable.list && \
+    apt-get update && \
+    apt-get install -y stellar-core=${STELLAR_CORE_VERSION} stellar-soroban-rpc=${SOROBAN_RPC_VERSION} && \
+    apt-get clean
+
+ENTRYPOINT ["/usr/bin/stellar-soroban-rpc"]

cmd/soroban-rpc/docker/Makefile

@@ -0,0 +1,34 @@
+SUDO := $(shell docker version >/dev/null 2>&1 || echo "sudo")
+
+# https://github.com/opencontainers/image-spec/blob/master/annotations.md
+BUILD_DATE := $(shell date -u +%FT%TZ)
+
+# Extract latest release semver from GitHub
+SOROBAN_RPC_LATEST_RELEASE := $(shell curl -sS https://api.github.com/repos/stellar/soroban-tools/releases/latest|jq -r ".tag_name"| tr -d "v" )
+
+# If deb version was provided via the SOROBAN_RPC_VERSION variable use it.
+# If not get latest deb build matching release from GitHub
+ifndef SOROBAN_RPC_VERSION
+        SOROBAN_RPC_VERSION_PACKAGE_VERSION := $(shell curl -sS https://apt.stellar.org/dists/focal/unstable/binary-amd64/Packages|grep -A 18 stellar-soroban-rpc|grep Version|grep $(SOROBAN_RPC_LATEST_RELEASE)|head -1|cut -d' ' -f2 )
+else
+        SOROBAN_RPC_VERSION_PACKAGE_VERSION := $(SOROBAN_RPC_VERSION)
+endif
+
+ifndef SOROBAN_RPC_VERSION_PACKAGE_VERSION
+        $(error Couldn't establish deb build from version $(SOROBAN_RPC_LATEST_RELEASE). Has the package been built?)
+endif
+
+ifndef STELLAR_CORE_VERSION
+        $(error STELLAR_CORE_VERSION environment variable must be set. For example 19.10.1-1310.6649f5173.focal~soroban)
+endif
+
+TAG ?= stellar/stellar-soroban-rpc:$(SOROBAN_RPC_VERSION_PACKAGE_VERSION)
+
+docker-build:
+	$(SUDO) docker build --pull --platform linux/amd64 $(DOCKER_OPTS) \
+	--label org.opencontainers.image.created="$(BUILD_DATE)" \
+	--build-arg STELLAR_CORE_VERSION=$(STELLAR_CORE_VERSION) --build-arg SOROBAN_RPC_VERSION=$(SOROBAN_RPC_VERSION_PACKAGE_VERSION) \
+	-t $(TAG) -f Dockerfile.release .
+
+docker-push:
+	$(SUDO) docker push $(TAG)