Add core files for creating image

Dockerfile

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+FROM instrumentisto/rsync-ssh:alpine3.13-r4
+# Intsall dependencies
+RUN apk add bash php
+# Add entrypoint and excludes
+ADD entrypoint.sh /entrypoint.sh
+ADD exclude.txt /exclude.txt
+ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

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+#!/bin/bash -l
+
+set -e
+
+: "${INPUT_WPE_SSHG_KEY_PRIVATE?Required secret not set.}"
+
+#Alias logic for ENV names 
+if [[ -n ${INPUT_WPE_ENV} ]]; then
+    WPE_ENV_NAME="${INPUT_WPE_ENV}";
+  elif [[ -n ${INPUT_PRD_ENV} ]]; then
+    WPE_ENV_NAME="${INPUT_PRD_ENV}";
+  elif [[ -n ${INPUT_STG_ENV} ]]; then
+    WPE_ENV_NAME="${INPUT_STG_ENV}";
+  elif [[ -n ${INPUT_DEV_ENV} ]]; then  
+    WPE_ENV_NAME="${INPUT_DEV_ENV}";
+  else echo "Failure: Missing environment variable..."  && exit 1;
+fi
+
+echo "Deploying ${GITHUB_REF} to ${WPE_ENV_NAME} ..." 
+
+# Deploy Vars
+WPE_SSH_HOST="$WPE_ENV_NAME.ssh.wpengine.net"
+DIR_PATH="$INPUT_REMOTE_PATH"
+SRC_PATH="$INPUT_SRC_PATH"
+
+# Set up our user and path
+WPE_SSH_USER="$WPE_ENV_NAME"@"$WPE_SSH_HOST"
+WPE_FULL_HOST=wpe_gha+"$WPE_SSH_USER"
+WPE_DESTINATION=wpe_gha+"$WPE_SSH_USER":sites/"$WPE_ENV_NAME"/"$DIR_PATH"
+
+
+# Setup our SSH Connection & use keys
+if [ ! -d "${HOME}"/.ssh ]; then 
+    mkdir "${HOME}/.ssh" 
+    SSH_PATH="${HOME}/.ssh" 
+    mkdir "${SSH_PATH}/ctl/"
+    # Set Key Perms 
+    chmod -R 700 "$SSH_PATH"
+  else 
+  SSH_PATH="${HOME}/.ssh" 
+  echo "using established SSH KEY path...";
+fi
+
+# Copy Secret Keys to container
+WPE_SSHG_KEY_PRIVATE_PATH="$SSH_PATH/github_action"  
+echo "$INPUT_WPE_SSHG_KEY_PRIVATE" > "$WPE_SSHG_KEY_PRIVATE_PATH"
+chmod 600 "$WPE_SSHG_KEY_PRIVATE_PATH"
+
+#establish known hosts
+KNOWN_HOSTS_PATH="$SSH_PATH/known_hosts" 
+ssh-keyscan -t rsa "$WPE_SSH_HOST" >> "$KNOWN_HOSTS_PATH" 
+chmod 644 "$KNOWN_HOSTS_PATH"
+
+echo "prepping file perms..."
+find "$SRC_PATH" -type d -exec chmod -R 775 {} \;
+find "$SRC_PATH" -type f -exec chmod -R 664 {} \;
+echo "file perms set..."
+
+# pre deploy php lint
+if [ "${INPUT_PHP_LINT^^}" == "TRUE" ]; then
+    echo "Begin PHP Linting."
+    find "$SRC_PATH"/ -name "*.php" -type f -print0 | while IFS= read -r -d '' file; do
+        php -l "$file"
+        status=$?
+        if [[ $status -ne 0 ]]; then
+            echo "FAILURE: Linting failed - $file :: $status" && exit 1
+        fi
+    done
+    echo "PHP Lint Successful! No errors detected!"
+else 
+    echo "Skipping PHP Linting."
+fi
+
+# post deploy script 
+if [[ -n ${INPUT_SCRIPT} ]]; then 
+    SCRIPT="&& sh ${INPUT_SCRIPT}";
+  else 
+    SCRIPT=""
+fi 
+
+# post deploy cache clear
+if [ "${INPUT_CACHE_CLEAR^^}" == "TRUE" ]; then
+    CACHE_CLEAR="&& wp --skip-plugins --skip-themes page-cache flush && wp --skip-plugins --skip-themes cdn-cache flush"
+  elif [ "${INPUT_CACHE_CLEAR^^}" == "FALSE" ]; then
+      CACHE_CLEAR=""
+  else echo "CACHE_CLEAR must be TRUE or FALSE only... Cache not cleared..."  && exit 1;
+fi
+
+# Deploy via SSH
+# setup master ssh connection 
+ssh -nNf -v -i "${WPE_SSHG_KEY_PRIVATE_PATH}" -o StrictHostKeyChecking=no -o ControlMaster=yes -o ControlPath="$SSH_PATH/ctl/%C" "$WPE_FULL_HOST"
+
+echo "!!! MASTER SSH CONNECTION ESTABLISHED !!!"
+#rsync 
+rsync --rsh="ssh -v -p 22 -i ${WPE_SSHG_KEY_PRIVATE_PATH} -o StrictHostKeyChecking=no -o 'ControlPath=$SSH_PATH/ctl/%C'" $INPUT_FLAGS --exclude-from='/exclude.txt' "$SRC_PATH" "$WPE_DESTINATION"
+
+# post deploy script and cache clear
+if [[ -n ${SCRIPT} || -n ${CACHE_CLEAR} ]]; then
+
+    if [[ -n ${SCRIPT} ]]; then
+      if ! ssh -v -p 22 -i "${WPE_SSHG_KEY_PRIVATE_PATH}" -o StrictHostKeyChecking=no -o ControlPath="$SSH_PATH/ctl/%C" "$WPE_FULL_HOST" "test -s sites/${WPE_ENV_NAME}/${INPUT_SCRIPT}"; then
+        status=1
+      fi
+
+      if [[ $status -ne 0 && -f ${INPUT_SCRIPT} ]]; then
+        ssh -v -p 22 -i "${WPE_SSHG_KEY_PRIVATE_PATH}" -o StrictHostKeyChecking=no -o ControlPath="$SSH_PATH/ctl/%C" "$WPE_FULL_HOST" "mkdir -p sites/${WPE_ENV_NAME}/$(dirname "${INPUT_SCRIPT}")"
+
+        rsync --rsh="ssh -v -p 22 -i ${WPE_SSHG_KEY_PRIVATE_PATH} -o StrictHostKeyChecking=no -o 'ControlPath=$SSH_PATH/ctl/%C'" "${INPUT_SCRIPT}" "wpe_gha+$WPE_SSH_USER:sites/$WPE_ENV_NAME/$(dirname "${INPUT_SCRIPT}")"
+      fi
+    fi
+
+    ssh -v -p 22 -i "${WPE_SSHG_KEY_PRIVATE_PATH}" -o StrictHostKeyChecking=no -o ControlPath="$SSH_PATH/ctl/%C" "$WPE_FULL_HOST" "cd sites/${WPE_ENV_NAME} ${SCRIPT} ${CACHE_CLEAR}"
+fi 
+
+#close master ssh 
+ssh -O exit -o ControlPath="$SSH_PATH/ctl/%C" "$WPE_FULL_HOST"
+
+echo "SUCCESS: Your code has been deployed to WP Engine!"

exclude.txt

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+# Version Control 
+# NOTE: 
+#    WP Engine does not support server side versioning so hosting any version control
+#    on the server would not be advantageous. 
+
+*~
+.git
+.github
+.gitignore
+.DS_Store
+.svn
+.cvs
+*.bak
+*.swp
+Thumbs.db
+
+# WordPress specific files
+# NOTE:
+#     These files are excluded from the deploy so as to prevent unwanted errors from occurring, 
+#     such as accidentally deploying a local version of wp-config.php or accidentally deleting
+#     wp-content/uploads/ if a --delete flag is passed while deploying root. Most paths here 
+#     are ingnored in the WPE sample .gitignore per best practice.
+wp-config.php
+wp-content/uploads/
+wp-content/blogs.dir/
+wp-content/upgrade/*
+wp-content/backup-db/*
+wp-content/advanced-cache.php
+wp-content/wp-cache-config.php
+wp-content/cache/*
+wp-content/cache/supercache/*
+
+# WP Engine specific files
+# NOTE:
+#   These files are specific to running a WordPress site at WP Engine and would
+#   likely result in a broken production site if modified in production (in
+#   fact, permissions would prevent modification for many of these files). While
+#   some of these files (such as those in /_wpeprivate) would be extremely large
+#   and completely useless in the context of local WordPress development, others
+#   (such as some of the WP Engine managed plugins) might be useful in rare
+#   circumstances to have as a reference for debugging purposes.
+.smushit-status
+.gitattributes
+.wpe-devkit/
+.wpengine-conf/
+_wpeprivate
+wp-content/object-cache.php
+wp-content/mu-plugins/mu-plugin.php
+wp-content/mu-plugins/slt-force-strong-passwords.php
+wp-content/mu-plugins/wpengine-security-auditor.php
+wp-content/mu-plugins/stop-long-comments.php
+wp-content/mu-plugins/force-strong-passwords*
+wp-content/mu-plugins/wpengine-common*
+wp-content/mu-plugins/wpe-wp-sign-on-plugin*
+wp-content/mu-plugins/wpe-elasticpress-autosuggest-logger*
+wp-content/mu-plugins/wpe-cache-plugin*
+wp-content/mysql.sql
+
+# Local specific
+wp-content/mu-plugins/local-by-flywheel-live-link-helper.php