[お願いします] .ebextensions Elastic Beanstalk の Envのexportの仕方について

前提・実現したいこと

Amazon Linux 2　の使用からEnvがexport　されないようになり、　Env を exportできず困っております。

実装方法_ドキュメント

https://aws.amazon.com/jp/premiumsupport/knowledge-center/elastic-beanstalk-env-variables-linux2/

.platform/hooks/postdeploy/01_set_env.sh AND .platform/confighooks/postdeploy/01_set_env.sh
-----
#!/bin/bash

#Create a copy of the environment variable file.
cp /opt/elasticbeanstalk/deployment/env /opt/elasticbeanstalk/deployment/custom_env_var

#Set permissions to the custom_env_var file so this file can be accessed by any user on the instance. You can restrict permissions based on your requirements.
chmod 644 /opt/elasticbeanstalk/deployment/custom_env_var

#Remove duplicate files upon deployment.
rm -f /opt/elasticbeanstalk/deployment/*.bak

# Add the following code to the 'ec2-user' bash profile to avoid manually sourcing the file on the instance.
source_cmd="source <(sed -E -n 's/[^#]+/export &/ p' /opt/elasticbeanstalk/deployment/custom_env_var)"
bash_profile_path=/home/ec2-user/.bash_profile
grep -qxF -- "$source_cmd" "$bash_profile_path" || echo $source_cmd >> $bash_profile_path

chmod +x .platform/hooks/postdeploy/01_set_env.sh
chmod +x .platform/confighooks/postdeploy/01_set_env.sh

追加部分1

.platform/hooks/postdeploy/00_myscript.sh

#!/bin/bash
echo "myscript start."
export $(sudo cat /opt/elasticbeanstalk/deployment/env | xargs)
echo "myscript finish."

追加部分2

.ebextensions/env.config

"/usr/local/bin/myscript.sh":
    mode: "000755"
    owner: root
    group: root
    content: |
        #!/bin/bash
        echo "myscript start."
        export $(sudo cat /opt/elasticbeanstalk/deployment/env | xargs)
        echo "myscript finish."