`uploads:migrate_to_s3` falha com 'Seahorse::Client::NetworkingError: certificate verify failed' no Digital Ocean Spaces

Preciso de ajuda para mover os uploads existentes para o Digital Ocean Spaces (o S3 está configurado corretamente e os novos uploads estão sendo enviados com sucesso).

Executei rake uploads:migrate_to_s3 com:

DISCOURSE_S3_ACCESS_KEY_ID="id" \
DISCOURSE_S3_SECRET_ACCESS_KEY="secret" \
DISCOURSE_S3_REGION="sfo2" \
DISCOURSE_S3_BUCKET="mybucket/uploads" \
DISCOURSE_S3_ENDPOINT="https://mybucket.sfo2.digitaloceanspaces.com" \
DRY_RUN=1 rake uploads:migrate_to_s3 --trace

Mas o rake foi abortado com:
Seahorse::Client::NetworkingError: SSL_connect returned=1 errno=0 state=error: certificate verify failed (unspecified certificate verification error)

O que indica possível falta de certificado raiz para os espaços do DO, conforme relatado aqui:

A resposta curta é que o SDK Ruby não inclui mais um certificado SSL. Ele depende que o OpenSSL no Ruby esteja configurado corretamente. O problema vinculado acima oferece algumas soluções simples para quando isso não ocorre.

Uma das soluções mencionadas lá sugere definir:

Aws.config[:ssl_ca_bundle] = '/path/to/ca-bundle.crt'

Baixei o arquivo para /shared/ca-bundle.crt e configurei no console do Rails, mas não consigo torná-lo persistente (a tarefa rake falha novamente e, ao verificar a configuração no console do Rails, ela volta para nil).

Rastreamento completo:

** Invoke uploads:migrate_to_s3 (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute uploads:migrate_to_s3
Checking if default already migrated...
13252 of 13261 uploads are not migrated to S3. S3 migration failed for db 'default'.
10052 posts are not remapped to new S3 upload URL. S3 migration failed for db 'default'.
** Invoke posts:missing_uploads (first_time)
** Invoke environment
** Execute posts:missing_uploads
Looking for missing uploads on: default

0 post uploads are missing.

Looking for missing uploads on: default

0 post uploads are missing.

No posts require rebaking
****************************** DRY RUN ******************************
Migrating uploads to S3 for 'default'...
Uploading files to S3...
 - Listing local files
.............. => 14025 files
 - Listing S3 files
rake aborted!
Seahorse::Client::NetworkingError: SSL_connect returned=1 errno=0 state=error: certificate verify failed (unspecified certificate verification error)
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Tasks: TOP => uploads:migrate_to_s3

Encontrei o erro: o parâmetro s3_endpoint com o rake estava incorreto :blush:. Deve incluir apenas a localização, sem o nome do bucket prefixado (o mesmo definido em admin—configurações do site—endpoint S3):

DISCOURSE_S3_ENDPOINT="https://sfo2.digitaloceanspaces.com"

Este tópico pode ser fechado.