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Merged
allardy merged 3 commits into from
Nov 5, 2025
Merged

chore(deploy): blue-green #103

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afffd41
chore(deploy): blue-green
allardy Oct 22, 2025
252246e
update
allardy Nov 5, 2025
08bf230
update
allardy Nov 5, 2025
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7 changes: 6 additions & 1 deletion full-service-deploy/action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,10 @@ inputs:
description: 'Build, tag and push the image, but skip updating the ECS services'
required: false
default: 'false'
target:
description: 'Deployment Target (main=default image, blue=blue env, green=green env, all=update all)'
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@AbrahamLopez10 AbrahamLopez10 Nov 5, 2025

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suggestion: We could use the choice input type for a nicer UX: https://github.blog/changelog/2021-11-10-github-actions-input-types-for-manual-workflows/

Suggested change
description: 'Deployment Target (main=default image, blue=blue env, green=green env, all=update all)'
description: 'Deployment Target (main=default image, blue=blue env, green=green env, all=update all)'
type: choice
options:
- main
- blue
- green
- all

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@allardy allardy Nov 5, 2025

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Yeah I will use that in the workflows themselves, wouldn't work with the actions here

required: false
default: 'main'

outputs:
sha:
Expand Down Expand Up @@ -123,10 +127,11 @@ runs:
push: true

- name: Deploy to ECS
uses: botpress/gh-actions/tag-and-deploy@v3.1
uses: botpress/gh-actions/tag-and-deploy@v3.3
with:
service: ${{ inputs.service }}
role-ecs-update: ${{ inputs.role-ecs-update }}
image-tag: ${{ steps.commit.outputs.sha }}
environment: ${{ inputs.environment }}
skip-ecs-update: ${{ inputs.skip-ecs-update }}
target: ${{ inputs.target }}
159 changes: 137 additions & 22 deletions tag-and-deploy/action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,11 @@ inputs:
required: false
type: boolean
default: false
target:
description: 'Deployment Target'
required: false
type: string
default: 'main'
role-ecs-update:
description: 'Role for the infra update'
required: false
Expand Down Expand Up @@ -79,22 +84,54 @@ runs:
IMAGE_NAME="$ECR_REGISTRY/${{ fromJson(env.CONFIG).repository }}"
IMAGE_TAG="${{ inputs.image-tag }}"
ENVIRONMENT="${{ inputs.environment }}"

docker pull "$IMAGE_NAME:$ENVIRONMENT" || true
PREVIOUS_STABLE_TAG="${ENVIRONMENT}_stable"
echo "PREVIOUS_STABLE_TAG=$PREVIOUS_STABLE_TAG" >> $GITHUB_ENV

if docker pull "$IMAGE_NAME:$ENVIRONMENT"; then
echo "Previous image found, tagging as stable"
docker tag "$IMAGE_NAME:$ENVIRONMENT" "$IMAGE_NAME:$PREVIOUS_STABLE_TAG"
docker push "$IMAGE_NAME:$PREVIOUS_STABLE_TAG"
else
echo "No previous image for $ENVIRONMENT, skipping stable tagging"
fi
TARGET="${{ inputs.target }}"

docker pull "$IMAGE_NAME:$IMAGE_TAG"
docker tag "$IMAGE_NAME:$IMAGE_TAG" "$IMAGE_NAME:$ENVIRONMENT"
docker push "$IMAGE_NAME:$ENVIRONMENT"

tag_and_push() {
local TAG_NAME=$1
echo "Processing tag: $TAG_NAME"

PREVIOUS_STABLE_TAG="${TAG_NAME}_stable"

if docker pull "$IMAGE_NAME:$TAG_NAME" 2>/dev/null; then
echo "Previous image found, tagging as stable"
docker tag "$IMAGE_NAME:$TAG_NAME" "$IMAGE_NAME:$PREVIOUS_STABLE_TAG"
docker push "$IMAGE_NAME:$PREVIOUS_STABLE_TAG"
else
echo "No previous image for $TAG_NAME, skipping stable tagging"
fi

docker tag "$IMAGE_NAME:$IMAGE_TAG" "$IMAGE_NAME:$TAG_NAME"
docker push "$IMAGE_NAME:$TAG_NAME"

echo "PREVIOUS_STABLE_TAG_${TAG_NAME}=$PREVIOUS_STABLE_TAG" >> $GITHUB_ENV
}

case "$TARGET" in
main)
tag_and_push "$ENVIRONMENT"
echo "TAG_NAME=$ENVIRONMENT" >> $GITHUB_ENV
;;
blue)
tag_and_push "blue_${ENVIRONMENT}"
echo "TAG_NAME=blue_${ENVIRONMENT}" >> $GITHUB_ENV
;;
green)
tag_and_push "green_${ENVIRONMENT}"
echo "TAG_NAME=green_${ENVIRONMENT}" >> $GITHUB_ENV
;;
all)
tag_and_push "$ENVIRONMENT"
tag_and_push "blue_${ENVIRONMENT}"
tag_and_push "green_${ENVIRONMENT}"
echo "TAG_NAME=$ENVIRONMENT,blue_${ENVIRONMENT},green_${ENVIRONMENT}" >> $GITHUB_ENV
;;
*)
echo "Invalid target: $TARGET"
exit 1
;;
esac

- uses: aws-actions/configure-aws-credentials@v3
with:
Expand Down Expand Up @@ -123,6 +160,7 @@ runs:
- name: Deploy Services
shell: bash
run: |
TARGET="${{ inputs.target }}"
IFS=',' read -r -a SERVICES <<< "${{ join(fromJson(env.CONFIG).services, ',') }}"
for SERVICE_PREFIX in "${SERVICES[@]}"; do
SERVICE_ARN=$(aws ecs list-services \
Expand All @@ -135,6 +173,33 @@ runs:
exit 1
fi

SHOULD_DEPLOY=false
case "$TARGET" in
main)
if [[ ! "$SERVICE_ARN" =~ [Bb]lue ]] && [[ ! "$SERVICE_ARN" =~ [Gg]reen ]]; then
SHOULD_DEPLOY=true
fi
;;
blue)
if [[ "$SERVICE_ARN" =~ [Bb]lue ]]; then
SHOULD_DEPLOY=true
fi
;;
green)
if [[ "$SERVICE_ARN" =~ [Gg]reen ]]; then
SHOULD_DEPLOY=true
fi
;;
all)
SHOULD_DEPLOY=true
;;
esac

if [ "$SHOULD_DEPLOY" = false ]; then
echo "Skipping service (target=$TARGET): $SERVICE_ARN"
continue
fi

echo "Service to update: $SERVICE_ARN"

if [[ "${{ inputs.skip-ecs-update }}" != "true" ]]; then
Expand All @@ -150,7 +215,8 @@ runs:
if: ${{ inputs.skip-ecs-update != 'true' }}
shell: bash
run: |
set +e # allow this step to continue if 'aws ecs wait' fails
set +e
TARGET="${{ inputs.target }}"
IFS=',' read -r -a SERVICES <<< "${{ join(fromJson(env.CONFIG).services, ',') }}"
SERVICE_ARNS=()
for SERVICE_PREFIX in "${SERVICES[@]}"; do
Expand All @@ -162,7 +228,32 @@ runs:
echo "No service found for prefix: $SERVICE_PREFIX"
exit 1
fi
SERVICE_ARNS+=($SERVICE_ARN)

SHOULD_WAIT=false
case "$TARGET" in
main)
if [[ ! "$SERVICE_ARN" =~ [Bb]lue ]] && [[ ! "$SERVICE_ARN" =~ [Gg]reen ]]; then
SHOULD_WAIT=true
fi
;;
blue)
if [[ "$SERVICE_ARN" =~ [Bb]lue ]]; then
SHOULD_WAIT=true
fi
;;
green)
if [[ "$SERVICE_ARN" =~ [Gg]reen ]]; then
SHOULD_WAIT=true
fi
;;
all)
SHOULD_WAIT=true
;;
esac

if [ "$SHOULD_WAIT" = true ]; then
SERVICE_ARNS+=($SERVICE_ARN)
fi
done

echo "Waiting for service(s) to stabilize: ${SERVICE_ARNS[*]}"
Expand Down Expand Up @@ -192,18 +283,42 @@ runs:
done

if [ $STOPPED_COUNT -gt 0 ]; then
echo "Services are failing. Rolling back to previous stable image: $PREVIOUS_STABLE_TAG"
echo "Services are failing. Rolling back to previous stable images"

ECR_REGISTRY="${{ steps.ecr.outputs.registry }}"
IMAGE_NAME="$ECR_REGISTRY/${{ fromJson(env.CONFIG).repository }}"
ENVIRONMENT="${{ inputs.environment }}"

# Pull the previous good image and retag/push as $ENVIRONMENT
docker pull "$IMAGE_NAME:$PREVIOUS_STABLE_TAG"
docker tag "$IMAGE_NAME:$PREVIOUS_STABLE_TAG" "$IMAGE_NAME:$ENVIRONMENT"
docker push "$IMAGE_NAME:$ENVIRONMENT"
rollback_tag() {
local TAG_NAME=$1
local STABLE_TAG="${TAG_NAME}_stable"

if docker pull "$IMAGE_NAME:$STABLE_TAG" 2>/dev/null; then
echo "Rolling back $TAG_NAME to $STABLE_TAG"
docker tag "$IMAGE_NAME:$STABLE_TAG" "$IMAGE_NAME:$TAG_NAME"
docker push "$IMAGE_NAME:$TAG_NAME"
else
echo "No stable image found for $TAG_NAME"
fi
}

case "$TARGET" in
main)
rollback_tag "$ENVIRONMENT"
;;
blue)
rollback_tag "blue_${ENVIRONMENT}"
;;
green)
rollback_tag "green_${ENVIRONMENT}"
;;
all)
rollback_tag "$ENVIRONMENT"
rollback_tag "blue_${ENVIRONMENT}"
rollback_tag "green_${ENVIRONMENT}"
;;
esac

# Force an update with the previous good image
for ARN in "${SERVICE_ARNS[@]}"; do
echo "Rolling back service: $ARN"
aws ecs update-service \
Expand Down
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