Add job image definition

ops/job/Dockerfile

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+FROM python:3.6-alpine3.7
+# Specify label-schema specific arguments and labels.
+ARG BUILD_DATE
+ARG VCS_REF
+LABEL org.label-schema.build-date=$BUILD_DATE \
+    org.label-schema.name="Gitcoin Job" \
+    org.label-schema.description="The job image provides a utility for running administrative tasks in a deployment." \
+    org.label-schema.url="https://gitcoin.co" \
+    org.label-schema.vcs-ref=$VCS_REF \
+    org.label-schema.vcs-url="https://github.com/gitcoinco/web" \
+    org.label-schema.vendor="Gitcoin" \
+    org.label-schema.schema-version="1.0"
+ENV LANG en_US.utf8
+RUN apk add --no-cache --update bash dumb-init postgresql-client py3-magic && \
+    pip install awscli s3cmd && \
+    mkdir -p /jobs/backups
+WORKDIR "/jobs"
+COPY entry.sh /bin/entry.sh
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/bin/entry.sh"]

ops/job/entry.sh

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+#!/usr/bin/dumb-init /bin/bash
+export PGPASSWORD=${POSTGRES_PASSWORD}
+export PSQL_HOST=${POSTGRES_HOST}
+export PSQL_PORT="${POSTGRES_PORT:-5432}"
+export PSQL_USER=${POSTGRES_USER}
+export PSQL_DB=${POSTGRES_DATABASE}
+export ENV="${ENV:-manual}"
+export JOB_ID="${JOB_ID:-NA}"
+export DB_BACKUPS_BUCKET="${DB_BACKUPS_BUCKET:-gitcoinbackups}"
+export AWS_DEFAULT_REGION="${AWS_REGION:-us-west-2}"
+export AWS_ACCESS_KEY_ID=$S3_ACCESS_KEY_ID
+export AWS_SECRET_ACCESS_KEY=$S3_SECRET_ACCESS_KEY
+export GZIP="${GZIP:-on}"
+export DB_BACKUP_CLEANSE="${DB_BACKUP_CLEANSE:-off}"
+
+"${JOB_TYPE:?You must set the JOB_TYPE environment variable}"
+
+JOB_DESC="Job: ($JOB_ID) - Type: ($JOB_TYPE) - Environment: ($ENV) -"
+
+echo "$JOB_DESC Started!"
+echo "$PSQL_HOST"
+date
+MONTH=$(date +"%m")
+DAY=$(date +"%d")
+YEAR=$(date +"%Y")
+
+# PSQL_HOST_OPTS="-h $PSQL_HOST -p $PSQL_PORT -U $PSQL_USER"
+S3_DB_BACKUP_PATH="s3://$DB_BACKUPS_BUCKET/$ENV/$YEAR/$MONTH/$DAY"
+
+gunzip_dump () {
+    # If GZIP is enabled, compress dump.sql file.
+    if [ "$GZIP" = "on" ]; then
+        echo "GZip started!"
+        gzip -f dump.sql > dump.sql.gz
+        echo "GZip completed!"
+    fi
+}
+
+backup_db () {
+    echo "Database backup started - Database: ($PSQL_DB)"
+    # If DB_BACKUP_CLEANSE is enabled,
+    if [ "$DB_BACKUP_CLEANSE" = "on" ]; then
+        DUMP_OUT="| sed 's/[\\.a-zA-z0-9]*\\@/xxxxx@/g' | sed 's/\\@[\\.a-zA-z0-9]*/@DOMAIN.TLD/g' | sed 's/key=[\\.a-zA-z0-9]*/key=XXXX/g' > dump.sql"
+    else
+        DUMP_OUT="--file=dump.sql"
+    fi
+    pg_dump "$PSQL_DB" -h "$PSQL_HOST" -p "$PSQL_PORT" -U "$PSQL_USER" "$DUMP_OUT"
+    echo "Backup completed! - Database: ($PSQL_DB)"
+    gunzip_dump
+}
+
+if [ "$JOB_TYPE" = "db-backup" ]; then
+    backup_db
+    echo "Upload started!"
+    aws s3 cp dump.sql.gz "$S3_DB_BACKUP_PATH"/"$PSQL_DB".sql.gz
+    echo "Upload completed!"
+elif [ "$JOB_TYPE" = "db-backup-all" ]; then
+    echo "Dump started - All Databases"
+    pg_dumpall "$PSQL_DB" -h "$PSQL_HOST" -p "$PSQL_PORT" --file=dump.sql
+    echo "Dump completed! - All Databases"
+    gunzip_dump
+    echo "Upload started!"
+    aws s3 cp dump.sql.gz s3://"$S3_DB_BACKUP_PATH"/all.sql.gz
+    echo "Upload completed!"
+elif [ "$JOB_TYPE" = "db-restore" ]; then
+    echo "Database restore started - Database: ($PSQL_DB)"
+    RESTORATION_KEY=${DB_RESTORATION_KEY:-'stage/latest.sql.gz'}
+    # Example: RESTORATION_KEY=stage/2018/04/05/gitcoin.sql.gz
+    aws s3 cp s3://"$DB_BACKUPS_BUCKET"/"$RESTORATION_KEY" dump.sql.gz || exit 2
+    gunzip -c dump.sql.gz | psql "$POSTGRES_HOST_OPTS" "$POSTGRES_DATABASE"
+    echo "Restore from S3 completed!"
+elif [ "$JOB_TYPE" = "cf-bust" ]; then
+    "${CF_DISTIBUTION_ID:?You must set the CF_DISTIBUTION_ID environment variable}"
+    echo "Cloudfront cache busting started - Distribution ID: ($CF_DISTIBUTION_ID)"
+    aws cloudfront create-invalidation --distribution-id "$CF_DISTIBUTION_ID" --invalidation-batch="Paths={Quantity=1,Items=["/*"]},CallerReference=$(date)"
+    echo "Cloudfront cache busting completed - Distribution ID: ($CF_DISTIBUTION_ID)"
+else
+    echo "No recognized job type specified!"
+fi
+echo "$JOB_DESC Completed!"