Upgrade to Go 1.16.12. (#13417)

* Move to Go 1.16.12 and newer cimg docker images for CI. (#13422)
* Update MongoDB tests to not fail in Go 1.16 (#11533)
* Upgrade snappy to fix panic with identity/packer on Go 1.16+arm64. (#12371) (#12375)
* creds/aws: Add support for DSA signature verification for EC2 (#12340)

.circleci/config/commands/@yarn-cache.yml

@@ -1,7 +1,7 @@
 restore_yarn_cache:
   steps:
     - restore_cache:
-        key: &YARN_LOCK_CACHE_KEY yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
+        key: &YARN_LOCK_CACHE_KEY yarn-lock-v7-{{ checksum "ui/yarn.lock" }}
 save_yarn_cache:
   steps:
     - save_cache:

.circleci/config/commands/go_test.yml

@@ -8,7 +8,7 @@ parameters:
     default: "/tmp/testlogs"
   go_image:
     type: string
-    default: "circleci/golang:1.15.15-buster"
+    default: "docker.mirror.hashicorp.services/cimg/go:1.16.12"
   use_docker:
     type: boolean
     default: false
@@ -82,11 +82,11 @@ steps:
             tail -f /dev/null
 
           # Run tests
-          docker exec testcontainer sh -c 'mkdir -p /go/src/github.com/hashicorp/vault'
-          docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
+          docker exec testcontainer sh -c 'mkdir -p /home/circleci/go/src/github.com/hashicorp/vault'
+          docker cp . testcontainer:/home/circleci/go/src/github.com/hashicorp/vault/
           docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH
 
-          docker exec -w /go/src/github.com/hashicorp/vault/ \
+          docker exec -w /home/circleci/go/src/github.com/hashicorp/vault/ \
             -e GO111MODULE -e CIRCLECI -e VAULT_CI_GO_TEST_RACE \
             testcontainer \
             gotestsum --format=short-verbose \
@@ -117,4 +117,4 @@ steps:
             name: Copy test results
             when: always
             command: |
-              docker cp testcontainer:/go/src/github.com/hashicorp/vault/test-results .
+              docker cp testcontainer:/home/circleci/go/src/github.com/hashicorp/vault/test-results .

.circleci/config/commands/setup-go.yml

@@ -12,7 +12,7 @@ steps:
         sudo rm -rf /usr/local/go
         sudo tar -C /usr/local -xzf "go${GO_VERSION}.linux-amd64.tar.gz"
         rm -f "go${GO_VERSION}.linux-amd64.tar.gz"
-        GOPATH="/go"
+        GOPATH="/home/circleci/go"
         mkdir $GOPATH 2>/dev/null || { sudo mkdir $GOPATH && sudo chmod 777 $GOPATH; }
         echo "export GOPATH='$GOPATH'" >> "$BASH_ENV"
         echo "export PATH='$PATH:$GOPATH/bin:/usr/local/go/bin'" >> "$BASH_ENV"

.circleci/config/executors/@executors.yml

@@ -4,49 +4,49 @@ go-machine:
   environment:
     GO111MODULE: "off"
     CIRCLECI_CLI_VERSION: 0.1.5546  # Pin CircleCI CLI to patch version (ex: 1.2.3)
-    GO_VERSION: 1.15.15  # Pin Go to patch version (ex: 1.2.3)
+    GO_VERSION: 1.16.12  # Pin Go to patch version (ex: 1.2.3)
     GOTESTSUM_VERSION: 0.5.2  # Pin gotestsum to patch version (ex: 1.2.3)
     GO_TAGS: ""
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault
 node:
   docker:
     - image: docker.mirror.hashicorp.services/node:14-buster
   shell: /usr/bin/env bash -euo pipefail -c
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault
 python:
   docker:
     - image: docker.mirror.hashicorp.services/python:3-alpine
   shell: /usr/bin/env bash -euo pipefail -c
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault
 alpine:
   docker:
     - image: docker.mirror.hashicorp.services/alpine:3.13
   shell: /bin/sh
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault
 docker-env-go-test-remote-docker:
   resource_class: medium
   docker:
-    - image: "docker.mirror.hashicorp.services/circleci/golang:1.15.15-buster"
+    - image: "docker.mirror.hashicorp.services/cimg/go:1.16.12"
   environment:
     GO111MODULE: "off"
     CIRCLECI_CLI_VERSION: 0.1.5546  # Pin CircleCI CLI to patch version (ex: 1.2.3)
     GO_TAGS: ""
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault
 docker-env-go-test:
   resource_class: large
   docker:
-    - image: "docker.mirror.hashicorp.services/circleci/golang:1.15.15-buster"
+    - image: "docker.mirror.hashicorp.services/cimg/go:1.16.12"
   environment:
     GO111MODULE: "off"
     CIRCLECI_CLI_VERSION: 0.1.5546  # Pin CircleCI CLI to patch version (ex: 1.2.3)
     GO_TAGS: ""
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault
 docker-env-go-test-race:
   resource_class: xlarge
   docker:
-    - image: "docker.mirror.hashicorp.services/circleci/golang:1.15.15-buster"
+    - image: "docker.mirror.hashicorp.services/cimg/go:1.16.12"
   environment:
     GO111MODULE: "off"
     CIRCLECI_CLI_VERSION: 0.1.5546  # Pin CircleCI CLI to patch version (ex: 1.2.3)
     GO_TAGS: ""
-  working_directory: /go/src/github.com/hashicorp/vault
+  working_directory: /home/circleci/go/src/github.com/hashicorp/vault