add gaia dockerfile

Dockerfile.gaia

@@ -0,0 +1,61 @@
+# syntax=docker/dockerfile:1
+
+# build latest tagged gaia
+FROM golang:1.18-alpine AS gaia-builder
+ARG USE_GAIA_TAG
+ENV GAIA_TAG=${USE_GAIA_TAG}
+
+ENV PACKAGES curl make git libc-dev bash gcc linux-headers
+RUN apk add --no-cache $PACKAGES
+
+ENV CGO_ENABLED=0
+ENV GOOS=linux
+ENV GOFLAGS="-buildvcs=false"
+
+# fetch gaia from tag and build it
+RUN if [  -z ${GAIA_TAG} ] ; then git clone https://github.com/cosmos/gaia.git && cd gaia && git checkout $(git tag | tail -1) && make build; else git clone https://github.com/cosmos/gaia.git && cd gaia && git checkout ${GAIA_TAG} && make build ; fi
+
+# if GAIA_TAG is not set, build the latest tagged version
+
+FROM golang:1.18-alpine AS is-builder
+
+ENV PACKAGES curl make git libc-dev bash gcc linux-headers
+RUN apk add --no-cache $PACKAGES
+
+ENV CGO_ENABLED=0
+ENV GOOS=linux
+ENV GOFLAGS="-buildvcs=false"
+
+# Copy in the repo under test
+ADD . /interchain-security
+
+WORKDIR /interchain-security
+
+# Do not specify version here. It leads to odd replacement behavior 
+RUN if [ -d "./cosmos-sdk" ]; then go mod edit -replace github.com/cosmos/cosmos-sdk=./cosmos-sdk; fi
+RUN go mod tidy
+
+# Install interchain security binary
+RUN make install
+
+# Get Hermes build
+FROM informalsystems/hermes:1.2.0 AS hermes-builder
+
+FROM --platform=linux/amd64 fedora:36
+RUN dnf update -y
+RUN dnf install -y which iproute iputils procps-ng vim-minimal tmux net-tools htop jq
+USER root
+
+COPY --from=hermes-builder /usr/bin/hermes /usr/local/bin/
+
+# swap interchain-security-pd binary with gaia binary but keep the name
+COPY --from=gaia-builder /go/gaia/build/gaiad /usr/local/bin/interchain-security-pd
+COPY --from=is-builder /go/bin/interchain-security-cd /usr/local/bin/interchain-security-cd
+COPY --from=is-builder /go/bin/interchain-security-cdd /usr/local/bin/interchain-security-cdd
+
+
+# Copy in the shell scripts that run the testnet
+ADD ./tests/integration/testnet-scripts /testnet-scripts
+
+# Copy in the hermes config
+ADD ./tests/integration/testnet-scripts/hermes-config.toml /root/.hermes/config.toml