Makefile: use docker run --rm whenever possible (cosmos#8026)

Remove terminated containers once their execution
has finished. This saves the users a bit of disk
space.

Closes: cosmos#8023

Makefile

@@ -10,7 +10,8 @@ BUILDDIR ?= $(CURDIR)/build
 SIMAPP = ./simapp
 MOCKS_DIR = $(CURDIR)/tests/mocks
 HTTPS_GIT := https://github.com/cosmos/cosmos-sdk.git
-DOCKER_BUF := docker run -v $(CURDIR):/workspace --workdir /workspace bufbuild/buf
+DOCKER := $(shell which docker)
+DOCKER_BUF := $(DOCKER) run --rm -v $(CURDIR):/workspace --workdir /workspace bufbuild/buf
 
 export GO111MODULE = on
 
@@ -112,26 +113,26 @@ $(BUILDDIR)/:
 	mkdir -p $(BUILDDIR)/
 
 build-simd-all: go.sum
-	docker rm latest-build || true
-	docker run --volume=$(CURDIR):/sources:ro \
+	$(DOCKER) rm latest-build || true
+	$(DOCKER) run --volume=$(CURDIR):/sources:ro \
         --env TARGET_PLATFORMS='linux/amd64 darwin/amd64 linux/arm64 windows/amd64' \
         --env APP=simd \
         --env VERSION=$(VERSION) \
         --env COMMIT=$(COMMIT) \
         --env LEDGER_ENABLED=$(LEDGER_ENABLED) \
         --name latest-build cosmossdk/rbuilder:latest
-	docker cp -a latest-build:/home/builder/artifacts/ $(CURDIR)/
+	$(DOCKER) cp -a latest-build:/home/builder/artifacts/ $(CURDIR)/
 
 build-simd-linux: go.sum $(BUILDDIR)/
-	docker rm latest-build || true
-	docker run --volume=$(CURDIR):/sources:ro \
+	$(DOCKER) rm latest-build || true
+	$(DOCKER) run --volume=$(CURDIR):/sources:ro \
         --env TARGET_PLATFORMS='linux/amd64' \
         --env APP=simd \
         --env VERSION=$(VERSION) \
         --env COMMIT=$(COMMIT) \
         --env LEDGER_ENABLED=false \
         --name latest-build cosmossdk/rbuilder:latest
-	docker cp -a latest-build:/home/builder/artifacts/ $(CURDIR)/
+	$(DOCKER) cp -a latest-build:/home/builder/artifacts/ $(CURDIR)/
 	cp artifacts/simd-*-linux-amd64 $(BUILDDIR)/simd
 
 cosmovisor:
@@ -333,12 +334,12 @@ format:
 DEVDOC_SAVE = docker commit `docker ps -a -n 1 -q` devdoc:local
 
 devdoc-init:
-	docker run -it -v "$(CURDIR):/go/src/github.com/cosmos/cosmos-sdk" -w "/go/src/github.com/cosmos/cosmos-sdk" tendermint/devdoc echo
+	$(DOCKER) run -it -v "$(CURDIR):/go/src/github.com/cosmos/cosmos-sdk" -w "/go/src/github.com/cosmos/cosmos-sdk" tendermint/devdoc echo
 	# TODO make this safer
 	$(call DEVDOC_SAVE)
 
 devdoc:
-	docker run -it -v "$(CURDIR):/go/src/github.com/cosmos/cosmos-sdk" -w "/go/src/github.com/cosmos/cosmos-sdk" devdoc:local bash
+	$(DOCKER) run -it -v "$(CURDIR):/go/src/github.com/cosmos/cosmos-sdk" -w "/go/src/github.com/cosmos/cosmos-sdk" devdoc:local bash
 
 devdoc-save:
 	# TODO make this safer
@@ -360,17 +361,17 @@ proto-all: proto-format proto-lint proto-check-breaking proto-gen
 
 proto-gen:
 	@echo "Generating Protobuf files"
-	docker run -v $(CURDIR):/workspace --workdir /workspace tendermintdev/sdk-proto-gen sh ./scripts/protocgen.sh
+	$(DOCKER) run --rm -v $(CURDIR):/workspace --workdir /workspace tendermintdev/sdk-proto-gen sh ./scripts/protocgen.sh
 
 proto-format:
 	@echo "Formatting Protobuf files"
-	docker run -v $(CURDIR):/workspace \
+	$(DOCKER) run --rm -v $(CURDIR):/workspace \
 	--workdir /workspace tendermintdev/docker-build-proto \
 	find ./ -not -path "./third_party/*" -name *.proto -exec clang-format -i {} \;
 
 # This generates the SDK's custom wrapper for google.protobuf.Any. It should only be run manually when needed
 proto-gen-any:
-	docker run -v $(CURDIR):/workspace --workdir /workspace tendermintdev/sdk-proto-gen sh ./scripts/protocgen-any.sh
+	$(DOCKER) run --rm -v $(CURDIR):/workspace --workdir /workspace tendermintdev/sdk-proto-gen sh ./scripts/protocgen-any.sh
 
 proto-swagger-gen:
 	@./scripts/protoc-swagger-gen.sh
@@ -440,8 +441,8 @@ proto-update-deps:
 
 # Run a 4-node testnet locally
 localnet-start: build-linux localnet-stop
-	$(if $(shell docker inspect -f '{{ .Id }}' cosmossdk/simd-env 2>/dev/null),$(info found image cosmossdk/simd-env),$(MAKE) -C contrib/images simd-env)
-	if ! [ -f build/node0/simd/config/genesis.json ]; then docker run --rm \
+	$(if $(shell $(DOCKER) inspect -f '{{ .Id }}' cosmossdk/simd-env 2>/dev/null),$(info found image cosmossdk/simd-env),$(MAKE) -C contrib/images simd-env)
+	if ! [ -f build/node0/simd/config/genesis.json ]; then $(DOCKER) run --rm \
 		--user $(shell id -u):$(shell id -g) \
 		-v $(BUILDDIR):/simd:Z \
 		-v /etc/group:/etc/group:ro \