EX-31 Rule
13a-14(d)/15d-14(d) Certifications.





I, Leah Nivison,
certify that:



1. I have reviewed
this report on Form 10-K and all reports on Form 10-D required to be filed in respect
of the period covered by this report on Form 10-K of the GS Mortgage Securities
Trust 2017-GS8 (the "Exchange Act periodic reports");



2. Based on my
knowledge, the Exchange Act periodic reports, taken as a whole, do not contain
any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period
covered by this report;



3. Based on my
knowledge, all of the distribution, servicing and other information required to
be provided under Form 10-D for the period covered by this report is included
in the Exchange Act periodic reports;



4. Based on my
knowledge and the servicer compliance statements required in this report under
Item 1123 of Regulation AB, and except as disclosed in the Exchange Act
periodic reports, the servicers have fulfilled their obligations under the
servicing agreements in all material respects; and



5. All of the reports
on assessment of compliance with servicing criteria for asset-backed securities
and their related attestation reports on assessment of compliance with
servicing criteria for asset-backed securities required to be included in this
report in accordance with Item 1122 of Regulation AB and Exchange Act Rules
13a-18 and 15d-18 have been included as an exhibit to this report, except as
otherwise disclosed in this report. Any material instances of noncompliance
described in such reports have been disclosed in this report on Form 10-K.



In giving the
certifications above, I have reasonably relied on information provided to me by
the following unaffiliated parties:



Wells Fargo Bank,
National Association, as Master Servicer, Midland Loan Services, a Division of
PNC Bank, National Association, as Special Servicer, Wilmington Trust, National
Association, as Trustee, Wells Fargo Bank, National Association, as Certificate
Administrator, Wells Fargo Bank, National Association, as Custodian, Pentalpha
Surveillance LLC, as Operating Advisor, CoreLogic Commercial Real Estate
Services, Inc., as Servicing Function Participant, National Tax Search, LLC, as
Servicing Function Participant, Wells Fargo Bank, National Association, as
Primary Servicer for the Westin Palo Alto Mortgage Loan, Hudson Americas L.P.,
as Special Servicer for the Westin Palo Alto Mortgage Loan, Wilmington Trust,
National Association, as Trustee for the Westin Palo Alto Mortgage Loan, Wells
Fargo Bank, National Association, as Certificate Administrator for the Westin
Palo Alto Mortgage Loan, Wells Fargo Bank, National Association, as Custodian
for the Westin Palo Alto Mortgage Loan, CoreLogic Commercial Real Estate
Services, Inc., as Servicing Function Participant for the Westin Palo Alto
Mortgage Loan, National Tax Search, LLC, as Servicing Function Participant for
the Westin Palo Alto Mortgage Loan, KeyBank National Association, as Primary
Servicer for the Olympic Tower Mortgage Loan, KeyBank National Association, as
Special Servicer for the Olympic Tower Mortgage Loan, Wells Fargo Bank,
National Association, as Trustee and Certificate Administrator for the Olympic
Tower Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for
the Olympic Tower Mortgage Loan, Wells Fargo Bank, National Association, as Primary
Servicer for the Loma Linda Mortgage Loan, Rialto Capital Advisors, LLC, as
Special Servicer for the Loma Linda Mortgage Loan, Wilmington Trust, National
Association, as Trustee for the Loma Linda Mortgage Loan, Wells Fargo Bank,
National Association, as Certificate Administrator for the Loma Linda Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the Loma Linda
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
Loma Linda Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as
Servicing Function Participant for the Loma Linda Mortgage Loan, National Tax
Search, LLC, as Servicing Function Participant for the Loma Linda Mortgage
Loan, Wells Fargo Bank, National Association, as Primary Servicer for the Long
Island Prime Portfolio - Uniondale Mortgage Loan, Rialto Capital Advisors, LLC,
as Special Servicer for the Long Island Prime Portfolio - Uniondale Mortgage
Loan, Wilmington Trust, National Association, as Trustee for the Long Island
Prime Portfolio - Uniondale Mortgage Loan, Wells Fargo Bank, National
Association, as Certificate Administrator for the Long Island Prime Portfolio -
Uniondale Mortgage Loan, Wells Fargo Bank, National Association, as Custodian
for the Long Island Prime Portfolio - Uniondale Mortgage Loan, Park Bridge
Lender Services LLC, as Operating Advisor for the Long Island Prime Portfolio -
Uniondale Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as
Servicing Function Participant for the Long Island Prime Portfolio - Uniondale
Mortgage Loan, National Tax Search, LLC, as Servicing Function Participant for
the Long Island Prime Portfolio - Uniondale Mortgage Loan, Wells Fargo Bank,
National Association, as Primary Servicer for the 90 Fifth Avenue Mortgage Loan,
Rialto Capital Advisors, LLC, as Special Servicer for the 90 Fifth Avenue
Mortgage Loan, Wilmington Trust, National Association, as Trustee for the 90
Fifth Avenue Mortgage Loan, Wells Fargo Bank, National Association, as
Certificate Administrator for the 90 Fifth Avenue Mortgage Loan, Wells Fargo
Bank, National Association, as Custodian for the 90 Fifth Avenue Mortgage Loan,
Park Bridge Lender Services LLC, as Operating Advisor for the 90 Fifth Avenue
Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as Servicing
Function Participant for the 90 Fifth Avenue Mortgage Loan, National Tax
Search, LLC, as Servicing Function Participant for the 90 Fifth Avenue Mortgage
Loan, Wells Fargo Bank, National Association, as Primary Servicer for the Petco
Corporate Headquarters Mortgage Loan, Rialto Capital Advisors, LLC, as Special
Servicer for the Petco Corporate Headquarters Mortgage Loan, Wilmington Trust,
National Association, as Trustee for the Petco Corporate Headquarters Mortgage
Loan, Wells Fargo Bank, National Association, as Certificate Administrator for
the Petco Corporate Headquarters Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the Petco Corporate Headquarters Mortgage Loan,
Park Bridge Lender Services LLC, as Operating Advisor for the Petco Corporate
Headquarters Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as
Servicing Function Participant for the Petco Corporate Headquarters Mortgage
Loan, National Tax Search, LLC, as Servicing Function Participant for the Petco
Corporate Headquarters Mortgage Loan, Wells Fargo Bank, National Association,
as Primary Servicer for the Shops at Boardman Mortgage Loan, Rialto Capital
Advisors, LLC, as Special Servicer for the Shops at Boardman Mortgage Loan,
Wilmington Trust, National Association, as Trustee for the Shops at Boardman
Mortgage Loan, Wells Fargo Bank, National Association, as Certificate
Administrator for the Shops at Boardman Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the Shops at Boardman Mortgage Loan,
Park Bridge Lender Services LLC, as Operating Advisor for the Shops at Boardman
Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as Servicing
Function Participant for the Shops at Boardman Mortgage Loan, National Tax
Search, LLC, as Servicing Function Participant for the Shops at Boardman
Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicer for
the Starwood Lodging Hotel Portfolio Mortgage Loan, Wells Fargo Bank, National
Association, as Special Servicer for the Starwood Lodging Hotel Portfolio
Mortgage Loan, U.S. Bank National Association, as Trustee and Certificate
Administrator for the Starwood Lodging Hotel Portfolio Mortgage Loan, U.S. Bank
National Association, as Custodian for the Starwood Lodging Hotel Portfolio
Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as Servicing
Function Participant for the Starwood Lodging Hotel Portfolio Mortgage Loan,
National Tax Search, LLC, as Servicing Function Participant for the Starwood
Lodging Hotel Portfolio Mortgage Loan, Wells Fargo Bank, National Association,
as Primary Servicer for the Worldwide Plaza Mortgage Loan, Cohen Financial, a
Division of SunTrust Bank, as Special Servicer for the Worldwide Plaza Mortgage
Loan, Wilmington Trust, National Association, as Trustee for the Worldwide
Plaza Mortgage Loan, Wells Fargo Bank, National Association, as Certificate
Administrator for the Worldwide Plaza Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the Worldwide Plaza Mortgage Loan, Park Bridge
Lender Services LLC, as Operating Advisor for the Worldwide Plaza Mortgage
Loan, CoreLogic Commercial Real Estate Services, Inc., as Servicing Function
Participant for the Worldwide Plaza Mortgage Loan, National Tax Search, LLC, as
Servicing Function Participant for the Worldwide Plaza Mortgage Loan, Wells
Fargo Bank, National Association, as Primary Servicer for the Esperanza
Mortgage Loan, Rialto Capital Advisors, LLC, as Special Servicer for the
Esperanza Mortgage Loan, Wilmington Trust, National Association, as Trustee for
the Esperanza Mortgage Loan, Wells Fargo Bank, National Association, as
Certificate Administrator for the Esperanza Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the Esperanza Mortgage Loan, Pentalpha
Surveillance LLC, as Operating Advisor for the Esperanza Mortgage Loan,
CoreLogic Commercial Real Estate Services, Inc., as Servicing Function
Participant for the Esperanza Mortgage Loan, and National Tax Search, LLC, as
Servicing Function Participant for the Esperanza Mortgage Loan.







Dated: November 4,
2019





/s/ Leah Nivison





Chief Executive
Officer

(senior
officer in charge of securitization of the depositor)